diff --git a/src/main/resources/static/assets/js/project_budget_plan.js b/src/main/resources/static/assets/js/project_budget_plan.js
index 536bad7..5632f78 100644
--- a/src/main/resources/static/assets/js/project_budget_plan.js
+++ b/src/main/resources/static/assets/js/project_budget_plan.js
@@ -489,7 +489,7 @@ function updateEachCapitalInterest() {
         //找到本月之前的所有的垫资和回款
         var underwrittenPlan = summationByClass($(this),".input-changeable-underwritten-plan-budget-plan", index);
         var repaymentPlan= summationByClass($(this),".input-changeable-repayment-plan-budget-plan", index);
-
+        console.log(underwrittenPlan, repaymentPlan);
         var capitalInterest = f2((underwrittenPlan-repaymentPlan)*underwrittenPlanTaxRate/100/12);
         total += capitalInterest;
 
@@ -511,7 +511,8 @@ function summationByClass(input, className, myIndex) {
     var trs = input.parent().parent().parent().find("tr");
     trs.each(function (index, element) {
         //myIndex从0开始，刨除表头和总计两行
-        if(index-2<=myIndex){
+        index-=2;
+        if(index>=0 && index<=myIndex){
             total += f2($(this).find(className).val());
         }
     });