diff --git a/M02_MasterTemplete/M02_Sangeun_Calc.py b/M02_MasterTemplete/M02_Sangeun_Calc.py
index a6f0743fd..a45cd402c 100644
--- a/M02_MasterTemplete/M02_Sangeun_Calc.py
+++ b/M02_MasterTemplete/M02_Sangeun_Calc.py
@@ -47,9 +47,8 @@ def times_of(row: dict) -> Decimal:
     """결과단위 분모 앞 수(원/10㎡ → 10) — 없으면 1."""
     from M01_MasterData import M01_MasterData_Store_Combo as combo_store
 
-    per = combo_store._PER.findall(str(row.get("결과단위") or ""))
-    head = per[0][0].replace(",", "") if len(per) == 1 else ""
-    return Decimal(head) if head else Decimal(1)
+    per = combo_store.mu.per(row.get("결과단위"))  # 712-2 단위 한 벌
+    return per[0][0] if len(per) == 1 else Decimal(1)
 
 
 def fingerprint(row: dict) -> str: