diff --git a/src/main/java/cn/palmte/work/service/ProjectBudgetService.java b/src/main/java/cn/palmte/work/service/ProjectBudgetService.java
index b4637d3..92a7260 100644
--- a/src/main/java/cn/palmte/work/service/ProjectBudgetService.java
+++ b/src/main/java/cn/palmte/work/service/ProjectBudgetService.java
@@ -384,7 +384,7 @@ public class ProjectBudgetService {
         }
 
         //总余额等于总收入-总支出
-        fundBalance = totalIncome.subtract(fundBalance);
+        fundBalance = totalIncome.subtract(totalCost);
 
 
         projectBudgetPlanDetail.setMonth("合计");