diff --git a/eladmin-system/src/main/java/cn/ysk/cashier/utils/FileUtils.java b/eladmin-system/src/main/java/cn/ysk/cashier/utils/FileUtils.java
index 8188cad2..f6e9437c 100644
--- a/eladmin-system/src/main/java/cn/ysk/cashier/utils/FileUtils.java
+++ b/eladmin-system/src/main/java/cn/ysk/cashier/utils/FileUtils.java
@@ -45,10 +45,12 @@ public class FileUtils {
                     cell.setCellValue(value);
 
                     if (j == 10 && !"0".equals(value)) {
+                        cell.setCellValue("-" + value);
                         setCellBackground(cell, IndexedColors.YELLOW, workbook);
                     }
 
                     if (j == 11 && !"0.00".equals(value)) {
+                        cell.setCellValue("-" + value);
                         setCellBackground(cell, IndexedColors.YELLOW, workbook);
                     }
                 }