diff --git a/apis/types.api b/apis/types.api
index c55a5df..0bfa68c 100644
--- a/apis/types.api
+++ b/apis/types.api
@@ -207,7 +207,7 @@ type (
 	}
 	SubscribeDiscount {
 		Quantity int64 `json:"quantity"`
-		Discount int64 `json:"discount"`
+		Discount float64 `json:"discount"`
 	}
 	Subscribe {
 		Id             int64               `json:"id"`
diff --git a/internal/logic/public/portal/tool.go b/internal/logic/public/portal/tool.go
index c2d2bbd..f687e2a 100644
--- a/internal/logic/public/portal/tool.go
+++ b/internal/logic/public/portal/tool.go
@@ -7,14 +7,14 @@ import (
 )
 
 func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64) float64 {
-	var finalDiscount int64 = 100
+	var finalDiscount float64 = 100
 
 	for _, discount := range discounts {
 		if inputMonths >= discount.Quantity && discount.Discount < finalDiscount {
 			finalDiscount = discount.Discount
 		}
 	}
-	return float64(finalDiscount) / float64(100)
+	return finalDiscount / float64(100)
 }
 
 func calculateCoupon(amount int64, couponInfo *coupon.Coupon) int64 {
diff --git a/internal/types/types.go b/internal/types/types.go
index 0e56390..5505276 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -2076,8 +2076,8 @@ type SubscribeConfig struct {
 }
 
 type SubscribeDiscount struct {
-	Quantity int64 `json:"quantity"`
-	Discount int64 `json:"discount"`
+	Quantity int64   `json:"quantity"`
+	Discount float64 `json:"discount"`
 }
 
 type SubscribeGroup struct {