diff --git a/src/utils/productCashFee.ts b/src/utils/productCashFee.ts
index 4ea68b2..bcd259c 100644
--- a/src/utils/productCashFee.ts
+++ b/src/utils/productCashFee.ts
@@ -5,20 +5,21 @@ export type ProductCashFeeSource = {
   cash_fee_sell_is_percent?: boolean | null
 }
 
-/** 5 => 5% ، 0.05 => 5% (اعشاری) */
-export function resolveFeePercentRatio(percentValue?: number | null) {
+/** 0.5 => 0.5% ، 5 => 5% — همیشه عدد درصد */
+export function resolveCashFeePercentRatio(percentValue?: number | null) {
   const offset = Number(percentValue ?? 0)
-  if (!offset) {
+  if (!offset || !Number.isFinite(offset)) {
     return 0
   }
 
-  if (Math.abs(offset) > 0 && Math.abs(offset) < 1) {
-    return offset
-  }
-
   return offset / 100
 }
 
+/** @deprecated از resolveCashFeePercentRatio استفاده کنید */
+export function resolveFeePercentRatio(percentValue?: number | null) {
+  return resolveCashFeePercentRatio(percentValue)
+}
+
 export function resolveProductCashFeeRial(
   feeValue: number | null | undefined,
   isPercent: boolean | null | undefined,
@@ -38,7 +39,7 @@ export function resolveProductCashFeeRial(
     return 0
   }
 
-  return Math.round(Math.abs(base * resolveFeePercentRatio(raw)))
+  return Math.round(Math.abs(base * resolveCashFeePercentRatio(raw)))
 }
 
 export function resolveProductCashFeeBuyRial(product: ProductCashFeeSource, basePriceRial: number) {
@@ -67,7 +68,8 @@ export function formatProductCashFeeLabel(
   }
 
   if (isPercent) {
-    return `${raw}%`
+    const text = Number.isInteger(raw) ? String(raw) : String(parseFloat(raw.toFixed(4)))
+    return `${text}%`
   }
 
   return `${raw} ریال`