From c5597a39dcce14956046b174baa6e72104c9ffb2 Mon Sep 17 00:00:00 2001
From: wangw <1594593906@qq.com>
Date: Tue, 25 Nov 2025 15:31:26 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A6=82=E6=9E=9C=20=E8=AE=A2=E5=8D=95?=
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---
 .../order/service/impl/ShopOrderStatisticServiceImpl.java | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/cash-service/order-service/src/main/java/com/czg/service/order/service/impl/ShopOrderStatisticServiceImpl.java b/cash-service/order-service/src/main/java/com/czg/service/order/service/impl/ShopOrderStatisticServiceImpl.java
index d9c0b8a07..47286a836 100644
--- a/cash-service/order-service/src/main/java/com/czg/service/order/service/impl/ShopOrderStatisticServiceImpl.java
+++ b/cash-service/order-service/src/main/java/com/czg/service/order/service/impl/ShopOrderStatisticServiceImpl.java
@@ -252,9 +252,11 @@ public class ShopOrderStatisticServiceImpl extends ServiceImpl<ShopOrderStatisti
         }
         //翻台率 （订单数-桌台数）/桌台数*100%
         if (result.getTableCount() != null && result.getTableCount() > 0) {
-            BigDecimal turnoverRate = new BigDecimal(
-                    result.getOrderCount()).subtract(new BigDecimal(result.getTableCount()))
-                    .divide(new BigDecimal(result.getTableCount()), 4, RoundingMode.HALF_DOWN).multiply(BigDecimal.valueOf(100));
+            long orderTableDifference = result.getOrderCount() - result.getTableCount();
+            BigDecimal turnoverRate = BigDecimal.ZERO;
+            if (orderTableDifference > 0) {
+                turnoverRate = new BigDecimal(orderTableDifference).divide(new BigDecimal(result.getTableCount()), 2, RoundingMode.HALF_DOWN);
+            }
             result.setTurnoverRate(turnoverRate);
         } else {
             result.setTurnoverRate(BigDecimal.ZERO);