diff --git a/M01_MasterData/M01_MasterData_Router.py b/M01_MasterData/M01_MasterData_Router.py
index 724023a68..eafc850b1 100644
--- a/M01_MasterData/M01_MasterData_Router.py
+++ b/M01_MasterData/M01_MasterData_Router.py
@@ -266,7 +266,7 @@ def _pct(got: dict, body: CalcBody) -> dict:
     except store.cm.mf.FormulaError:
         return got
     lines = labor_doc.pct_extras(whole, logic, got["lines"], got.get("middle") or {})
-    return {**got, "lines": lines}
+    return {**got, "lines": _num(lines)}  # 율 Decimal(4.0) 이 글자 「4.0」 으로 나가지 않게
 
 
 @router.post("/text")
diff --git a/M01_MasterData/M01_MasterData_Store_Flow.py b/M01_MasterData/M01_MasterData_Store_Flow.py
index 34e111133..fecdbbcc5 100644
--- a/M01_MasterData/M01_MasterData_Store_Flow.py
+++ b/M01_MasterData/M01_MasterData_Store_Flow.py
@@ -19,6 +19,7 @@ from contextvars import ContextVar
 from decimal import Decimal, InvalidOperation
 from typing import Any
 
+from common_util import common_util_money as mfm
 from M01_MasterData import M01_MasterData_Store as store
 from M01_MasterData import M01_MasterData_Store_Make as make
 from M01_MasterData import M01_MasterData_Store_Revise as revise
@@ -265,7 +266,8 @@ def text(key: str, inputs: dict, row: dict | None = None) -> dict | None:
     groups: dict[str, list] = {}
     for o in got["outputs"]:
         value = o["value"]
-        shown = f"{value:,}" if isinstance(value, (int, Decimal)) else str(value)
+        # 비목 소계 = 정수 · 그 밖 = 수량 꼴
+        shown = (mfm.fmt_money if o["cost"] else mfm.fmt)(value)
         line = {"이름": o["name"], "글": shown, "이름글": o["name"], "금액": value, "조각": []}
         groups.setdefault(o["cost"] or "값", []).append(line)
     out = [{"비목": k, "줄": v} for k, v in groups.items()]
diff --git a/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts b/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts
index 6bfa49452..289a819d4 100644
--- a/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts
+++ b/M01_MasterData/M01_MasterData_UI_Logic_Calc.ts
@@ -213,6 +213,9 @@ export function buildCalc(host: HTMLElement, ctx: CalcContext): void {
   );
 }
 
+/** 중간 값 이름이 돈 꼴(경비 · 노무비 · 공구손료 · 금액 · 단가 · 노임) — 1,000 미만이어도 돈 꼴 */
+const MONEY_NAME = /(비|료|액|가|임)$/;
+
 /** `money` = 결과가 돈(원) — 그때만 결과 값도 정수 · 수량·비율 결과는 소수 그대로 */
 export function answerView(answer: CalcAnswer, draft: boolean, money: boolean): HTMLElement[] {
   const note = draft
@@ -303,7 +306,7 @@ export function answerView(answer: CalcAnswer, draft: boolean, money: boolean):
           el("dt", { text: k }),
           el("dd", {
             text:
-              money && typeof v === "number" && Math.abs(v) >= 1000
+              money && typeof v === "number" && (Math.abs(v) >= 1000 || MONEY_NAME.test(k))
                 ? formatMoney(v)
                 : formatNumber(v),
           }),
diff --git a/M01_MasterData/M01_MasterData_UI_Logic_Edit.ts b/M01_MasterData/M01_MasterData_UI_Logic_Edit.ts
index d706e0d10..3e4a14832 100644
--- a/M01_MasterData/M01_MasterData_UI_Logic_Edit.ts
+++ b/M01_MasterData/M01_MasterData_UI_Logic_Edit.ts
@@ -20,7 +20,7 @@ import { tx } from "./M01_MasterData_UI_Logic_Text";
 import { createBadge } from "@ui/ui_template_badge";
 import { createText } from "@ui/ui_template_text";
 import { createIconButton } from "@ui/ui_template_button";
-import { formatNumber } from "../common_util/common_util_money";
+import { formatLineMoney, formatNumber, formatPrice } from "../common_util/common_util_money";
 
 export type PickMode = "element" | "table";
 export type PickDone = (item: ElementBrief, column?: string) => void;
@@ -272,14 +272,14 @@ function inputsSection(
 
 function priceCell(ctx: EditContext, item: HoLine, i: number): HTMLElement {
   const line = ctx.lines?.[i];
-  if (line) return el("span", { className: "m01-logic__money", text: formatNumber(line.단가) });
+  if (line) return el("span", { className: "m01-logic__money", text: formatPrice(line.단가) });
   if (item.종류 === "로직" || item.요소.includes("{")) {
     return el("span", { className: "ui-text ui-text--muted", text: tx("Ho_PriceLater") });
   }
   const brief = ctx.prices[item.요소];
   if (brief === undefined) return el("span", { className: "ui-text ui-text--muted", text: "" });
   if (brief === null) return createText(tx("Ho_Missing"), "error");
-  return el("span", { className: "m01-logic__money", text: formatNumber(brief.값) });
+  return el("span", { className: "m01-logic__money", text: formatPrice(brief.값) });
 }
 
 function hoSection(
@@ -343,7 +343,10 @@ function hoSection(
       textBox(item.단위 ?? "", (v) => set(() => (item.단위 = v)), "m01-logic__unit"),
       el("div", { className: "m01-logic__pair", children: [tag, qty, table] }),
       priceCell(ctx, item, i),
-      el("span", { className: "m01-logic__money", text: formatNumber(ctx.lines?.[i]?.금액 ?? "") }),
+      el("span", {
+        className: "m01-logic__money",
+        text: formatLineMoney(ctx.lines?.[i]?.금액 ?? ""),
+      }),
       cost,
       dropButton(() => {
         list.splice(i, 1);
diff --git a/M02_MasterTemplete/M02_Hopyo_SkPatch.py b/M02_MasterTemplete/M02_Hopyo_SkPatch.py
index ef390969d..55f6a2fe5 100644
--- a/M02_MasterTemplete/M02_Hopyo_SkPatch.py
+++ b/M02_MasterTemplete/M02_Hopyo_SkPatch.py
@@ -29,6 +29,7 @@ import re
 from decimal import Decimal
 from typing import Any
 
+from common_util import common_util_money as money_fmt
 from M02_MasterTemplete import M02_Hopyo_Combine as combine
 from M02_MasterTemplete import M02_Hopyo_Elem as elem
 from M02_MasterTemplete import M02_Hopyo_Finger as finger
@@ -227,14 +228,22 @@ class _Plan:
                 for x in rows:
                     self.drop(x["cid"])
                 if want < -TINY:
-                    self.miss("노임", t, a, f"엑셀 {a:.6g} · 더한 기초만 {f:.6g}", 단위="인")
+                    self.miss(
+                        "노임",
+                        t,
+                        a,
+                        f"엑셀 {money_fmt.fmt(a)} · 더한 기초만 {money_fmt.fmt(f)}",
+                        단위="인",
+                    )
             elif not rows:
                 if t in self.lb:
                     unit = "인"
                     self.add({"종류": "인력", "요소": self.lb[t], "이름": t, "단위": unit,
                               "수량": _num(want * self.tb)})  # fmt: skip
                 else:
-                    self.miss("노임", t, want, f"엑셀 {a:.6g} — 우리 인력에 없음", 단위="인")
+                    self.miss(
+                        "노임", t, want, f"엑셀 {money_fmt.fmt(a)} — 우리 인력에 없음", 단위="인"
+                    )
             elif len(rows) == 1 or not b:
                 self.cover(rows[0]["cid"], qty=want * self.tb)
                 for x in rows[1:]:
diff --git a/M02_MasterTemplete/M02_Hopyo_Verdict.py b/M02_MasterTemplete/M02_Hopyo_Verdict.py
index 000f5b706..54cca597f 100644
--- a/M02_MasterTemplete/M02_Hopyo_Verdict.py
+++ b/M02_MasterTemplete/M02_Hopyo_Verdict.py
@@ -12,6 +12,7 @@ from __future__ import annotations
 
 from typing import Any
 
+from common_util import common_util_money as money_fmt
 from M02_MasterTemplete import M02_Hopyo_Basis as hopyo_basis
 from M02_MasterTemplete import M02_Hopyo_Combine as combine
 from M02_MasterTemplete import M02_Hopyo_Finger as finger
@@ -20,8 +21,7 @@ from M02_MasterTemplete import M02_Hopyo_Match as hopyo_match
 from M02_MasterTemplete import M02_Hopyo_Option as option
 
 
-def _num(x: float) -> str:
-    return f"{x:.4g}"
+_num = money_fmt.fmt  # 꼬리표 수 — 공용 수량 꼴(1만 넘어도 지수 꼴 아님)
 
 
 def excel_qty(efp: dict[str, Any]) -> dict[str, Any]:
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Find_Pick.ts b/M02_MasterTemplete/M02_MasterTemplete_Find_Pick.ts
index 21852349c..5130636fc 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Find_Pick.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Find_Pick.ts
@@ -175,7 +175,7 @@ export function openFindPicker(opt: FindPickOptions): void {
       { key: "품명", label: tc("Std_Name"), width: 200 },
       { key: "규격", label: tc("Std_Spec"), width: 110 },
       { key: "단위", label: tc("Std_Unit"), width: 44 },
-      { key: "금액", label: tc("Std_Money"), kind: "number", width: 84 },
+      { key: "금액", label: tc("Std_Money"), kind: "number", decimals: 1, trim: true, width: 84 },
       { key: "구분", label: L("M02_FindClass"), width: 180 },
       { key: "출처", label: tc("Std_Source"), width: 120 },
     ],
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Check.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Check.ts
index c756a5617..e9a35acef 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Check.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Check.ts
@@ -53,6 +53,7 @@ import { openLaborInput } from "./M02_MasterTemplete_Labor_Input";
 import { draftDoc } from "./logic/M02_MasterTemplete_Hopyo_Draft";
 import { toItem } from "./M02_MasterTemplete_Hopyo_ToItem";
 import { openLeftOf } from "./M02_MasterTemplete_Hopyo_Left";
+import { formatNumber, formatPrice } from "../common_util/common_util_money";
 import "./M02_MasterTemplete_Hopyo.css";
 
 export const POLL_MS = 3000;
@@ -161,8 +162,7 @@ export function leftOut(lines: HopyoLine[], d: CheckDraft): Record<string, numbe
   return out;
 }
 
-const n4 = (v: number | undefined): string =>
-  v === undefined ? "–" : String(Math.round(v * 10000) / 10000);
+const n4 = (v: number | undefined): string => (v === undefined ? "–" : formatNumber(v));
 
 /** 품 비교 글 — 「콘크리트공 0.1091 → 0.1091 ✓ · 굴착기 0.29 → 0.31 ≠」 */
 export function compareText(q: HopyoMatch["품"] | undefined): string {
@@ -201,7 +201,7 @@ export const sureLines = (lines: HopyoLine[], d: CheckDraft): HopyoLine[] =>
 
 const why = (error: unknown): string => (error instanceof Error ? error.message : String(error));
 const won = (v: number | null | undefined): string =>
-  v === null || v === undefined ? "" : v.toLocaleString("ko-KR");
+  v === null || v === undefined ? "" : formatPrice(v);
 const fail = (error: unknown): void => showToast(`실패 — ${why(error)}`, "error");
 const note = (text: string): HTMLElement =>
   el("span", { className: "ui-text ui-text--muted", text, attrs: { "data-text": "14" } });
@@ -467,7 +467,7 @@ export function buildHopyoCheck(opt: CheckOptions): HTMLElement {
         children: [
           td(x.이름),
           td(x.규격),
-          td(x.수량 === null ? "" : String(x.수량), "m02-hopyo__num"),
+          td(x.수량 === null ? "" : formatNumber(x.수량), "m02-hopyo__num"),
           td(x.단위),
           td(won(x.금액), "m02-hopyo__num"),
           td(x.까닭),
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts
index 6f93225ef..8b90df4f8 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts
@@ -26,6 +26,7 @@ import type { LaborCalc } from "./M02_MasterTemplete_Labor_Api";
 import { markCells, markHeads } from "./M02_MasterTemplete_Labor_MatMarks";
 import { moneyCell, PRICE_SLOTS } from "./M02_MasterTemplete_Labor_Rows";
 import { tc } from "./M02_MasterTemplete_Labor_Text";
+import { formatPrice } from "../common_util/common_util_money";
 import { tableOf } from "./logic/M02_MasterTemplete_Hopyo_Draft";
 
 /** 드롭다운 — 저장 값(서버 뺌 까닭) → 화면 글 */
@@ -248,7 +249,7 @@ function matRow(line: HopyoLine, ctx: RowsContext): HTMLElement {
   const first = mats[0];
   const ours = mats.length ? mats.reduce((s, m) => s + (m.반영 ?? 0), 0) : null;
   const show = (v: number | null | undefined): string =>
-    wait ? "…" : v === null || v === undefined ? "—" : v.toLocaleString("ko-KR");
+    wait ? "…" : v === null || v === undefined ? "—" : formatPrice(v);
   const p = parts[0];
   return rowOf(line, ctx, [
     el("td", { className: "m02-labrow__no", text: String(line.차례 + 1) }),
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Choose.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Choose.ts
index a9db164a4..7ee3b84dc 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Choose.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Choose.ts
@@ -24,6 +24,7 @@ import type {
 } from "./M02_MasterTemplete_Hopyo_Api";
 import { getActiveLayer, getActiveOwner } from "./M02_MasterTemplete_Api_Fetch";
 import { type FindKind, openFindPicker } from "./M02_MasterTemplete_Find_Pick";
+import { formatNumber } from "../common_util/common_util_money";
 import "./M02_MasterTemplete_Hopyo.css";
 
 const MATERIAL = new Set(["자재", "별도계상"]);
@@ -34,7 +35,7 @@ const FOLD_TEXT: Record<string, string> = {
 const PRE_TIP = "미리 고름 — 엑셀 인용 조항 = 1위 기초 조항 · 누르기는 사용자";
 const note = (text: string): HTMLElement =>
   el("span", { className: "ui-text ui-text--muted", text, attrs: { "data-text": "14" } });
-const num = (v: number): string => String(Math.round(v * 10000) / 10000);
+const num = formatNumber;
 
 /** 대상 글 — 「이름 [단위]」 · 자재는 규격도 · 호표 = 「제N호표」 */
 export const targetText = (t: HopyoTarget | null | undefined): string => {
@@ -52,7 +53,10 @@ export const inputsText = (
 ): string =>
   [
     Object.entries(values)
-      .map(([k, v]) => `${k}=${String(v)}${from[k] && from[k] !== "자동값" ? `(${from[k]})` : ""}`)
+      .map(
+        ([k, v]) =>
+          `${k}=${formatNumber(v)}${from[k] && from[k] !== "자동값" ? `(${from[k]})` : ""}`,
+      )
       .join(", "),
     unread.length ? `⚠ 못 가름: ${unread.join(", ")}` : "",
   ]
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Ledger.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Ledger.ts
index 523be4af8..33cde0fb8 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Ledger.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Ledger.ts
@@ -27,6 +27,7 @@ import { fetchLogicInputs } from "./M02_MasterTemplete_Labor_Api";
 import { dateTimeText } from "../common_util/common_util_time";
 import { openLaborInput } from "./M02_MasterTemplete_Labor_Input";
 import { openFindPicker } from "./M02_MasterTemplete_Find_Pick";
+import { formatNumber } from "../common_util/common_util_money";
 import "./M02_MasterTemplete_Hopyo.css";
 
 export const LEDGER_TITLE = "별칭 장부";
@@ -108,7 +109,7 @@ export const pairText = (p: LedgerPair): string =>
     `${p.로직 ?? p.자재 ?? ""} × ${p.배}`,
     p.몫 != null ? `몫 ${p.몫}` : "",
     Object.entries(p.입력값 ?? {})
-      .map(([k, v]) => `${k}=${String(v)}`)
+      .map(([k, v]) => `${k}=${formatNumber(v)}`)
       .join(", "),
   ]
     .filter(Boolean)
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Relink.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Relink.ts
index 8f038fb87..013177e1f 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Relink.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Relink.ts
@@ -22,6 +22,7 @@ import {
 } from "./M02_MasterTemplete_Hopyo_Api";
 import type { LaborDoc } from "./M02_MasterTemplete_Labor_Api";
 import { lineId } from "./M02_MasterTemplete_Labor_Calc";
+import { formatMoney } from "../common_util/common_util_money";
 
 type Kind = "노임" | "자재";
 const COST: Record<Kind, "노무비" | "재료비"> = { 노임: "노무비", 자재: "재료비" };
@@ -37,8 +38,7 @@ export interface RelinkSource {
   price?: (kind: Kind, key: string) => number | null | undefined;
 }
 
-const won = (v: number | null | undefined): string =>
-  v == null ? "-" : Math.round(v).toLocaleString("ko-KR");
+const won = (v: number | null | undefined): string => (v == null ? "-" : formatMoney(v));
 
 /** 사전조합 여럿(붙여넣기 · 실무자료 들여오기 뒤) — 서버가 쓰고 전후 1 단위 값 */
 export function relinkKeys(keys: string[]): RelinkSource {
@@ -152,11 +152,11 @@ export async function openRelink(src: RelinkSource): Promise<void> {
         { key: "pick", label: "고름", width: 44 },
         { key: "unit", label: "단위", width: 44 },
         { key: "qty", label: "수량", kind: "number", decimals: 4, trim: true, width: 60 },
-        { key: "pasted", label: "붙인 단가", kind: "number", decimals: 1, width: 84 },
+        { key: "pasted", label: "붙인 단가", kind: "number", decimals: 3, trim: true, width: 84 },
         { key: "now", label: src.priceLabel, width: 84 },
         { key: "cand", label: "이음 후보 (누름 = 다음)", width: 210 },
-        { key: "price", label: "후보 단가", kind: "number", decimals: 1, width: 84 },
-        { key: "gap", label: "금액 차이", kind: "number", decimals: 1, width: 84 },
+        { key: "price", label: "후보 단가", kind: "number", decimals: 3, trim: true, width: 84 },
+        { key: "gap", label: "금액 차이", kind: "number", decimals: 1, trim: true, width: 84 },
       ],
       rows: data,
       frozen: 1,
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Sheet.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Sheet.ts
index e585953e5..b9316c596 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Sheet.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Sheet.ts
@@ -58,6 +58,7 @@ import {
 import { builtWord } from "./M02_MasterTemplete_Hopyo_Choose";
 import { openRelink, relinkKeys } from "./M02_MasterTemplete_Hopyo_Relink";
 import { leftButton } from "./M02_MasterTemplete_Hopyo_Left";
+import { formatPrice } from "../common_util/common_util_money";
 import "./M02_MasterTemplete_Hopyo.css";
 
 export interface HopyoSheetOptions {
@@ -86,7 +87,7 @@ const DANSAN = "단가산출";
 
 const why = (error: unknown): string => (error instanceof Error ? error.message : String(error));
 const won = (v: number | null | undefined): string =>
-  v === null || v === undefined ? "" : v.toLocaleString("ko-KR");
+  v === null || v === undefined ? "" : formatPrice(v);
 const note = (text: string): HTMLElement =>
   el("span", { className: "ui-text ui-text--muted", text, attrs: { "data-text": "14" } });
 
diff --git a/M02_MasterTemplete/M02_MasterTemplete_ItemList.ts b/M02_MasterTemplete/M02_MasterTemplete_ItemList.ts
index a9d139738..5dc909f03 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_ItemList.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_ItemList.ts
@@ -16,6 +16,7 @@ import "../M01_MasterData/M01_MasterData_UI_Style.css";
 import { fetchTree, type Layer, type TreeItem } from "./M02_MasterTemplete_Api_Fetch";
 import { folderOf, leafName, matchText } from "./M02_MasterTemplete_TreePanel_Model";
 import { createEmpty } from "@ui/ui_template_empty";
+import { formatMoney } from "../common_util/common_util_money";
 
 /** 목록 종류 — 하위 컨테이너 셋 + 항목 통째(복사 생성) */
 export type ListKind = "structure" | "area" | "labor" | "item";
@@ -54,7 +55,7 @@ const SIZE = 30;
 const DASH = "—";
 const day = (iso?: string): string => dateText(iso, "");
 const money = (value: number | null | undefined): string =>
-  typeof value === "number" ? value.toLocaleString("ko-KR", { maximumFractionDigits: 0 }) : DASH;
+  typeof value === "number" ? formatMoney(value) : DASH;
 /** 가장 늦게 고친 날 — 항목 통째 */
 const latest = (row: ItemRow): string =>
   day(
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Labor_Paste.ts b/M02_MasterTemplete/M02_MasterTemplete_Labor_Paste.ts
index cf00010b3..9b1f8242e 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Labor_Paste.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Labor_Paste.ts
@@ -23,6 +23,7 @@ import {
 import { openRelink, relinkDoc, relinkKeys } from "./M02_MasterTemplete_Hopyo_Relink";
 import type { LaborDoc } from "./M02_MasterTemplete_Labor_Api";
 import { lineId } from "./M02_MasterTemplete_Labor_Calc";
+import { formatMoney } from "../common_util/common_util_money";
 
 const COLS_KEY = "aislo:hopyo-paste-cols";
 const FIELDS = ["품명", "규격", "수량", "단위", "금액", "노", "재", "경"] as const;
@@ -40,8 +41,7 @@ const NEED = new Set(["품명", "수량", "단위"]);
 
 const letter = (n: number): string =>
   n < 26 ? String.fromCharCode(65 + n) : `${letter(Math.floor(n / 26) - 1)}${letter(n % 26)}`;
-const won = (v: number | null | undefined): string =>
-  v == null ? "-" : Math.round(v).toLocaleString("ko-KR");
+const won = (v: number | null | undefined): string => (v == null ? "-" : formatMoney(v));
 
 export function rememberedCols(): PasteCols | null {
   try {
@@ -169,7 +169,7 @@ export function builtNotice(got: HopyoBuiltAll, keys: string[]): void {
               { key: "name", label: "합계 다른 호표", width: 260 },
               { key: "excel", label: "엑셀", kind: "number" },
               { key: "ours", label: "우리", kind: "number" },
-              { key: "gap", label: "차이", kind: "number", decimals: 1 },
+              { key: "gap", label: "차이", kind: "number", decimals: 1, trim: true },
             ],
             rows,
           }).root,
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Labor_Pick.ts b/M02_MasterTemplete/M02_MasterTemplete_Labor_Pick.ts
index 98962e502..85fc55196 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Labor_Pick.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Labor_Pick.ts
@@ -154,7 +154,7 @@ export function openLogicPicker(
       { key: "품명", label: tc("Std_Name"), width: 220 },
       { key: "규격", label: tc("Std_Spec"), width: 220 },
       { key: "단위", label: tc("Std_Unit"), width: 56 },
-      { key: "금액", label: tc("Std_Money"), kind: "number", width: 96 },
+      { key: "금액", label: tc("Std_Money"), kind: "number", decimals: 1, trim: true, width: 96 },
       { key: "출처", label: tc("Std_Source"), width: 150 },
     ],
     rows: [],
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Library_List.ts b/M02_MasterTemplete/M02_MasterTemplete_Library_List.ts
index d0f324a4a..e1a92ede2 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Library_List.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Library_List.ts
@@ -34,6 +34,7 @@ import {
   type TemplateInfo,
 } from "./M02_MasterTemplete_Api_Fetch";
 import { tc } from "./M02_MasterTemplete_Labor_Text";
+import { formatMoney } from "../common_util/common_util_money";
 
 /** 목록 줄 — 서버가 문서 `이름`(제목) · 단위 · 1 단위 기준 계를 실어 보냄 */
 type Row = TemplateInfo & {
@@ -63,8 +64,7 @@ export interface LibraryListOptions {
 
 const SIZE = 30;
 const why = (error: unknown): string => (error instanceof Error ? error.message : "");
-const money = (v: number | null | undefined): string =>
-  v == null ? "" : v.toLocaleString("ko-KR", { maximumFractionDigits: 2 });
+const money = (v: number | null | undefined): string => (v == null ? "" : formatMoney(v));
 export const libraryLabel = (row: Row): string => (row.제목 ? `${row.이름} ${row.제목}` : row.이름);
 
 /** 새 단가산출 몸(717-2a) — 바탕 없음 · 빈 더한줄 · 단위 「식」(서버 필수 · 상세에서 고침 · 717-2b) */
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Structure.ts b/M02_MasterTemplete/M02_MasterTemplete_Structure.ts
index 50396c26a..7e61ac2ac 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Structure.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Structure.ts
@@ -40,6 +40,7 @@ import {
 } from "./M02_MasterTemplete_ItemCards";
 import { layerSource } from "./M02_MasterTemplete_ItemSource";
 import { pickHere, pickedName, type From } from "./M02_MasterTemplete_ItemPick";
+import { formatMoney } from "../common_util/common_util_money";
 import "./M02_MasterTemplete_Structure.css";
 
 export type { CardKind, EditKind, SheetKind } from "./M02_MasterTemplete_ItemCards";
@@ -76,7 +77,7 @@ export type ColumnNumbers = Record<string, StructureNumbers>;
 /** 집계표 「일위대가 합계」 줄 글(86-3) — 반영합 · 없으면 기준합 · 계산값 없음 = 빈 글(「—」) · 색은 `laborSumState` */
 export function laborSumText(numbers: StructureNumbers | undefined): string {
   if (typeof numbers?.일위대가합계 !== "number") return "";
-  return numbers.일위대가합계.toLocaleString("ko-KR", { maximumFractionDigits: 0 });
+  return formatMoney(numbers.일위대가합계);
 }
 
 /** 합계 칸 색 상태 · 툴팁 까닭(101-1) — 계산값 없음 · 담은 것 없음 = 색 없음 */
diff --git a/resources/master_data/scripts/master_fmt.py b/common_util/common_util_money.py
similarity index 100%
rename from resources/master_data/scripts/master_fmt.py
rename to common_util/common_util_money.py
diff --git a/common_util/common_util_money.ts b/common_util/common_util_money.ts
index abbf4fa2c..7a1d3759a 100644
--- a/common_util/common_util_money.ts
+++ b/common_util/common_util_money.ts
@@ -6,7 +6,7 @@
  *   formatPrice      단가 — 200 원 미만 = 유효숫자 넷 · 그 밖 = 최대 소수 3 · 끝 0 뗌
  *   formatNumber     수량 · 율 · 품 — 소수 넷째 자리 · 유효숫자 넷 중 많은 쪽 · 끝 0 뗌
  * 값이 숫자가 아니면 빈 값 = 「」 · 객체 = JSON 글 · 그 밖 = String.
- * 짝: `resources/master_data/scripts/master_fmt.py` (거울 시험 `resources/tester/test_588_2_money_fmt.py`).
+ * 짝: `common_util/common_util_money.py` (거울 시험 `resources/tester/test_588_2_money_fmt.py`).
  * ========================================================================== */
 
 const LOCALE = "ko-KR";
diff --git a/resources/tester/test_588_2_money_fmt.py b/resources/tester/test_588_2_money_fmt.py
index 2a26b5749..0598a951b 100644
--- a/resources/tester/test_588_2_money_fmt.py
+++ b/resources/tester/test_588_2_money_fmt.py
@@ -1,4 +1,4 @@
-"""원화 꼴 한 벌 거울 시험 — `master_fmt.py`(파이썬) ↔ `common_util_money.ts`(TS · Node) 가 같은 글.
+"""원화 꼴 한 벌 거울 시험 — `common_util_money.py`(파이썬) ↔ `common_util_money.ts`(TS · Node) 가 같은 글.
 
 CLAUDE.md 5장 ① 짝. 값은 숫자 글(`num`) · 숫자 아닌 글(`text`) · 빈 값(None).
 """
@@ -10,9 +10,9 @@ import sys
 from decimal import Decimal
 
 HERE = os.path.dirname(os.path.abspath(__file__))
-sys.path.insert(0, os.path.join(HERE, "..", "master_data", "scripts"))
+sys.path.insert(0, os.path.join(HERE, "..", ".."))
 
-import master_fmt as mf  # noqa: E402
+from common_util import common_util_money as mf  # noqa: E402
 
 NUMS = [
     "0", "1", "2.5", "-1234.5", "1.00005", "0.12345", "0.00167", "22.9", "1846.39",
diff --git a/resources/tester/test_m02_hopyo_screen.py b/resources/tester/test_m02_hopyo_screen.py
index a6710daec..8d49cad8a 100644
--- a/resources/tester/test_m02_hopyo_screen.py
+++ b/resources/tester/test_m02_hopyo_screen.py
@@ -413,13 +413,13 @@ def test_실물_응답_대역_확인_창():
     assert remicon["상태"] == "맞음" and remicon["checked"] and remicon["checkable"]
     assert (
         remicon["compare"]
-        == "콘크리트공 0.1091 → 0.1091 ✓ · 보통인부 0.0364 → 0.0364 ✓ · 굴착기 0.29 → 0.2909 ✓"
+        == "콘크리트공 0.1091 → 0.1091 ✓ · 보통인부 0.03636 → 0.03636 ✓ · 굴착기 0.29 → 0.2909 ✓"
     )
     assert (
         remicon["inputs"]
         == "타설방법=장비사용타설(규격), 구조물=철근구조물(규격), 소량감률=50(블록)"
     )
-    assert remicon["qty"] == "콘크리트공 0.1091 · 보통인부 0.0364 · 굴착기 0.29hr"
+    assert remicon["qty"] == "콘크리트공 0.1091 · 보통인부 0.03636 · 굴착기 0.29hr"
     assert remicon["cands"][0][1] == "맞음" and remicon["cands"][0][2].startswith("조항 건설품셈")
     rebar = by["철근가공조립(현장)"]
     assert rebar["상태"] == "다른 점" and not rebar["checked"] and rebar["checkable"]
diff --git a/ui_template/ui_template_group_cards.ts b/ui_template/ui_template_group_cards.ts
index 70327f2ba..54ed26f97 100644
--- a/ui_template/ui_template_group_cards.ts
+++ b/ui_template/ui_template_group_cards.ts
@@ -13,6 +13,7 @@
 
 import "./ui_template_group_cards.css";
 import { createButton } from "./ui_template_elements";
+import { formatLineMoney } from "../common_util/common_util_money";
 
 /** 비목 셋 — 노무 · 재료 · 경비 */
 export type GroupParts = [number | null, number | null, number | null];
@@ -81,9 +82,8 @@ export const PART_LABELS = ["노무", "재료", "경비"] as const;
 export const clampColumns = (value: unknown): number =>
   GROUP_COLUMNS.includes(value as 1) ? (value as number) : 2;
 
-const won = new Intl.NumberFormat("ko-KR", { maximumFractionDigits: 1 });
 const plain = (value: number | null | undefined): string =>
-  value === null || value === undefined || !Number.isFinite(value) ? "" : won.format(value);
+  value === null || value === undefined || !Number.isFinite(value) ? "" : formatLineMoney(value);
 
 /** 줄 비목 풍선 — 「노무 1,234 · 재료 0 · 경비 56」 · 셋 다 빈칸 = 없음 */
 export function partsTip(
diff --git a/ui_template/ui_template_item_picker.ts b/ui_template/ui_template_item_picker.ts
index d80b39ab3..16d599191 100644
--- a/ui_template/ui_template_item_picker.ts
+++ b/ui_template/ui_template_item_picker.ts
@@ -53,6 +53,7 @@ import { createEditView, type EditView } from "./ui_template_item_picker_edit";
 import { createComboTable } from "./ui_template_item_picker_table";
 import { createToolbar } from "./ui_template_toolbar";
 import { createText } from "./ui_template_text";
+import { formatMoney } from "../common_util/common_util_money";
 
 export type { SummaryItem } from "./ui_template_item_picker_data";
 
@@ -212,8 +213,7 @@ export function openItemPicker(opts: ItemPickerOptions): Promise<ItemPickerResul
       const spec = chosen ? specOf(chosen) : null;
       specHost.hidden = !spec || spec.열.length < 2;
       if (!spec || specHost.hidden) return void specHost.replaceChildren();
-      const sum = (n: number | null): string =>
-        n === null ? "" : ` · ${n.toLocaleString("ko-KR", { maximumFractionDigits: 0 })}`;
+      const sum = (n: number | null): string => (n === null ? "" : ` · ${formatMoney(n)}`);
       const buttons = spec.열.map((col) => {
         const button = createButton({
           label: `${spec.이름}=${col.이름}${sum(col.합계)}`,
diff --git a/ui_template/ui_template_item_picker_detail.ts b/ui_template/ui_template_item_picker_detail.ts
index ada74e3d8..9553767a2 100644
--- a/ui_template/ui_template_item_picker_detail.ts
+++ b/ui_template/ui_template_item_picker_detail.ts
@@ -15,6 +15,7 @@
 
 import { createButton, el, showConfirmDialog, showToast } from "./ui_template_elements";
 import { readTemplate } from "../M02_MasterTemplete/M02_MasterTemplete_Api_Fetch";
+import { formatMoney } from "../common_util/common_util_money";
 import { dateText } from "../common_util/common_util_time";
 import { calcLabor, type LaborDoc } from "../M02_MasterTemplete/M02_MasterTemplete_Labor_Api";
 import type { EditKind, ItemCardsHandle } from "../M02_MasterTemplete/M02_MasterTemplete_ItemCards";
@@ -239,7 +240,7 @@ export function createItemDetail(opts: ItemDetailOptions): ItemDetail {
   async function paintCalc(from: ProjectItemInfo, mine: number): Promise<void> {
     const got = await calcCopy(from.폴더).then(summarize, () => null);
     if (!got || mine !== seq) return;
-    const total = Math.round(got.total).toLocaleString();
+    const total = formatMoney(got.total);
     status.append(
       el("span", {
         className: "ui-item-picker__calc",