diff --git a/apps/fo/app/store/dashboard/index.tsx b/apps/fo/app/store/dashboard/index.tsx
index 6f3fd6f04..87091a3a1 100644
--- a/apps/fo/app/store/dashboard/index.tsx
+++ b/apps/fo/app/store/dashboard/index.tsx
@@ -980,13 +980,6 @@ const searchWaterUsage = async (searchYear: string, fcltyCd: string) => {
     return waterUsage;
 }
 
-// 쉼표가 포함된 문자열을 숫자로 변환하는 함수
-const parseNumber = (value: string | number | null | undefined): number => {
-    if (value === null || value === undefined || value === '') return 0;
-    if (typeof value === 'number') return value;
-    return Number(value.replace(/,/g, ''));
-};
-
 // 강우영향일 계산 및 강우량 덮어씌우기
 export const calRainEffectDayRainManage = (data: RainManageListProps[]) => {