diff --git a/gamesrv/tienlen/playerdata_tienlen.go b/gamesrv/tienlen/playerdata_tienlen.go
index 27165b0..a6c799b 100644
--- a/gamesrv/tienlen/playerdata_tienlen.go
+++ b/gamesrv/tienlen/playerdata_tienlen.go
@@ -255,22 +255,17 @@ func (this *TienLenPlayerData) UpdatePigbankCoin(gainTexCoin int64) {
 
 	if gainTexCoin < 0 {
 		LoseCoinRate := fGetPropValue("LoseCoinRate")
-
-		pack.AddBankCoin = int64(math.Ceil(float64(gainTexCoin) * float64(LoseCoinRate) / 100.0))
-		this.WelfData.PigBank.BankCoin += pack.AddBankCoin
-		if this.WelfData.PigBank.BankCoin < 0 {
-			this.WelfData.PigBank.BankCoin = 0
-		}
+		pack.AddBankCoin = int64(math.Abs(math.Ceil(float64(gainTexCoin) * float64(LoseCoinRate) / 100.0)))
 	}
 
 	if gainTexCoin > 0 {
 		WinCoinRate := fGetPropValue("WinCoinRate")
-
 		pack.AddBankCoin = int64(math.Ceil(float64(gainTexCoin) * float64(WinCoinRate) / 100.0))
-		this.WelfData.PigBank.BankCoin += pack.AddBankCoin
-		if this.WelfData.PigBank.BankCoin > BankCoinMax {
-			this.WelfData.PigBank.BankCoin = BankCoinMax
-		}
+	}
+
+	this.WelfData.PigBank.BankCoin += pack.AddBankCoin
+	if this.WelfData.PigBank.BankCoin > BankCoinMax {
+		this.WelfData.PigBank.BankCoin = BankCoinMax
 	}
 
 	pack.BankCoinMax = BankCoinMax