diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts
index 8b90df4f8..35dee7c48 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_CheckRows.ts
@@ -26,7 +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 { formatNumber, formatPrice } from "../common_util/common_util_money";
 import { tableOf } from "./logic/M02_MasterTemplete_Hopyo_Draft";
 
 /** 드롭다운 — 저장 값(서버 뺌 까닭) → 화면 글 */
@@ -62,8 +62,7 @@ export interface RowsContext {
   options: (line: HopyoLine, at: number) => void;
 }
 
-const num = (v: number): string =>
-  Number(v.toPrecision(12)).toLocaleString("ko-KR", { maximumFractionDigits: 6 });
+const num = formatNumber;
 const small = (text: string, cls = "m02-labrow__note"): HTMLElement =>
   el("small", { className: cls, text, attrs: { title: text } });
 
diff --git a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Compare.ts b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Compare.ts
index 80426135e..827e5cdf5 100644
--- a/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Compare.ts
+++ b/M02_MasterTemplete/M02_MasterTemplete_Hopyo_Compare.ts
@@ -12,6 +12,7 @@ import { t as L, type LocaleKey } from "@ui/ui_template_locale";
 import { createSegment } from "@ui/ui_template_segment";
 import { createTable } from "@ui/ui_template_table";
 import { createText } from "@ui/ui_template_text";
+import { formatNumber, formatPrice } from "../common_util/common_util_money";
 import type {
   CompareLook,
   ElemCand,
@@ -26,7 +27,7 @@ const LOOK: Record<CompareLook, { tone: BadgeTone; key: LocaleKey }> = {
   기초만: { tone: "neutral", key: "M02_CmpBase" },
 };
 const LOOKS = Object.keys(LOOK) as CompareLook[];
-const num = (n: number | null): string => (n === null ? "—" : String(Number(n.toPrecision(4))));
+const num = (n: number | null): string => (n === null ? "—" : formatNumber(n));
 
 /** 선택 칸 글 뒤 요약 — 「같음 3 · 품 다름 1」 · 견줌 못함 = "" */
 export const compareBrief = (c: SangeunCompare | null | undefined): string =>
@@ -112,7 +113,7 @@ export function elemChoices(cands: ElemCand[], pick: (c: ElemCand) => void): HTM
   const box = el("div", { className: "ui-toolbar", attrs: { "data-elem": "" } });
   box.title = L("M02_ElemTitle");
   for (const c of cands.slice(0, 3)) {
-    const price = c.단가 ? ` · ${c.단가.toLocaleString()}` : "";
+    const price = c.단가 ? ` · ${formatPrice(c.단가)}` : "";
     const b = createButton({
       label: `${c.이름}${c.규격 ? ` ${c.규격}` : ""} [${c.단위 ?? ""}]${price}`,
       size: 24,