diff --git a/src/main/java/com/gunshi/project/xyt/service/GateValveRealService.java b/src/main/java/com/gunshi/project/xyt/service/GateValveRealService.java
index ba7955b..e0647d5 100644
--- a/src/main/java/com/gunshi/project/xyt/service/GateValveRealService.java
+++ b/src/main/java/com/gunshi/project/xyt/service/GateValveRealService.java
@@ -166,7 +166,7 @@ public class GateValveRealService extends ServiceImpl<GateValveRealMapper, GateV
         BigDecimal value = list.stream().filter(o -> nowMonth != o.getMonth()).map(TyYearRainfall::getDrp).reduce(BigDecimal.ZERO, BigDecimal::add);
 
         //预测来水量 = 月降雨量和 * 水库坝址控制流域面积
-        BigDecimal sum = nowMonthDrp.add(value);
+        BigDecimal sum = nowMonthDrp.add(value).divide(new BigDecimal(1000),2,RoundingMode.HALF_UP);
         return sum.multiply(watShedArea);
     }