修改正负变更值计算方式

app/public/js/change_information.js

@@ -6395,6 +6395,8 @@ function calcChangePrice() {
         if (g) {
             const list = _.filter(changeList, { gcl_id: g });
             let spamount = 0;
+            let positive_amount = 0;
+            let negative_amount = 0;
             let valuation_amount = 0;
             let unvaluation_amount = 0;
             let unitPrice = 0;