update

app/admin/svc/svc_data_statisstics.go

@@ -1282,7 +1282,7 @@ func CentralKitchenForSchoolDataStatisticsExport(req md.CentralKitchenForSchoolD
 						xlsx.SetSheetRow("Sheet1", "A"+strconv.Itoa(j), &[]interface{}{k2, k3, utils.Float64ToStr(v3["income"]), utils.Float64ToStr(v3["refund"])})
 						sumClassNum++
 						sumIncome += v3["income"]
-						sumRefund += v3["income"]
+						sumRefund += v3["refund"]
 						j++
 					}
 				}