diff --git a/app/hdl/hdl_points_center.go b/app/hdl/hdl_points_center.go
index 228173e..ce0a875 100644
--- a/app/hdl/hdl_points_center.go
+++ b/app/hdl/hdl_points_center.go
@@ -920,8 +920,13 @@ func PointsCenterCalcExchange(c *gin.Context) {
 		e.OutErr(c, e.ERR, err.Error())
 		return
 	}
+	amountDecimal, err := decimal.NewFromString(exchangeResp.GetEggEnergyAmount)
+	if err != nil {
+		e.OutErr(c, e.ERR, err.Error())
+		return
+	}
 	resp := md.PointsCenterCalcExchangeResp{
-		Value: exchangeResp.GetEggEnergyAmount,
+		Value: amountDecimal.StringFixed(2),
 		Fee:   feeDecimal.StringFixed(2),
 	}