diff --git a/apps/sn/app/(map-layout)/map/components/popupComponent/chart/rdiiChart.tsx b/apps/sn/app/(map-layout)/map/components/popupComponent/chart/rdiiChart.tsx
index 22f0d8876..840281988 100644
--- a/apps/sn/app/(map-layout)/map/components/popupComponent/chart/rdiiChart.tsx
+++ b/apps/sn/app/(map-layout)/map/components/popupComponent/chart/rdiiChart.tsx
@@ -106,7 +106,7 @@ const RdiiChart = ({ pplMngNo }: ModalOpenProp) => {
     });
     fn.selectPplRdiiQty(rainInfwtAnlsSn, pplMngNo).then((data) => {// 강우유입수량 조회
       setRdiiQty(Math.round(data.rdiih*24)); // cmd: m³/d 단위로 변환
-      setTotalVolume(Math.round(data.rdiih * data.sustaintime)); // 총체적 m³/mm
+      setTotalVolume(Math.round(data.rdiih * data.sustaintime / data.raintotal)); // 총체적 m³/mm
     });
     setPopupOpen(false);
   };