/**
  * 计算实付金额所占百分比
  *
  * @return
  */
 private BigDecimal getPaymentPercent(Money curPayableFee, Money totalPayableFee) {
   if (curPayableFee == null || totalPayableFee == null || totalPayableFee.getCent() == 0l) {
     return BigDecimal.ZERO;
   }
   BigDecimal paymentPercentBig =
       new BigDecimal(curPayableFee.getCent())
           .divide(new BigDecimal(totalPayableFee.getCent()), 4, BigDecimal.ROUND_HALF_UP);
   return paymentPercentBig;
 }