Update CollageOrderServiceImpl.java

order-application-service/src/main/java/cn/freemud/service/impl/CollageOrderServiceImpl.java

@@ -195,7 +195,7 @@ public class CollageOrderServiceImpl implements CollageOrderService {
             if (order.getOrderCostDetailList() != null) {
                 OrderCostResp orderCostResp = order.getOrderCostDetailList().stream().filter(detail -> (detail.getCostType().equals(2) && detail.getBillType().equals(1))).findFirst().orElse(new OrderCostResp());
                 BigDecimal deliveryPrice = orderCostResp.getActualCostAmount() == null ? new BigDecimal(0) : orderCostResp.getActualCostAmount();
-                deliveryAmount = Math.floorDiv(deliveryPrice.longValue(), payerOpenIdList.size());
+                deliveryAmount = Math.floorDiv(deliveryPrice.longValue(), payerOpenIdList.size() + 1);
             }
             Long amount = itemAmount + packAmount + deliveryAmount;
             groupBuyUserInfo = new GroupBuyRequest.UserInfo();