f

app/main/api/internal/logic/admin_agent/adminreviewbankcardwithdrawallogic.go

@@ -3,6 +3,7 @@ package admin_agent
 import (
 	"context"
 	"database/sql"
+	"math"
 	"time"
 	"tyc-server/app/main/model"
 	"tyc-server/common/xerr"
@@ -129,8 +130,9 @@ func (l *AdminReviewBankCardWithdrawalLogic) approveWithdrawal(ctx context.Conte
 
 // applyReviewTaxRate 按审核时选择的扣税比例更新提现记录与扣税记录
 func (l *AdminReviewBankCardWithdrawalLogic) applyReviewTaxRate(ctx context.Context, session sqlx.Session, record *model.AgentWithdrawal, taxRate float64) error {
-	newTaxAmount := record.Amount * taxRate
-	newActualAmount := record.Amount - newTaxAmount
+	// 金额保留两位小数，避免浮点误差并与前端/支付宝一致
+	newTaxAmount := math.Round(record.Amount*taxRate*100) / 100
+	newActualAmount := math.Round((record.Amount-newTaxAmount)*100) / 100
 
 	record.TaxAmount = newTaxAmount
 	record.ActualAmount = newActualAmount