feat(math): calcDiscount (#894)

Alwatr · Mar 2, 2023 · 17db335 · 17db335
2 parents 551fc24 + ac7c18b
commit 17db335
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/core/math/src/math.ts b/core/math/src/math.ts
@@ -252,3 +252,8 @@ export const hex = (bytes: Uint8Array): string => {
   }
   return str;
 };
+
+export const calcDiscount = (price: number, finalPrice: number, decimal = 2, upSide = true): number => {
+  decimal = Math.pow(10, decimal);
+  return Math.round((price - finalPrice) / (upSide ? finalPrice : price) * 100 * decimal) / decimal;
+};