合同支付，百分号计算问题

app/lib/pay_calc.js

@@ -17,7 +17,7 @@ class PayCalculate {
     constructor (ctx, stage, tenderInfo) {
         this.ctx = ctx;
         this.stage = stage;
-        this.percentReg = /[0-9]+%/g;
+        this.percentReg = /((\d?)|((\d+)(\.\d+)))%/g;
         this.tenderInfo = tenderInfo;
         this.decimal = tenderInfo.decimal.pay ? tenderInfo.decimal.payTp : tenderInfo.decimal.tp;
         /* 以下变量在调用calculate方法后获得