From ac7c18bc0f0e008b8db9fd4b69451a89e7fb069b Mon Sep 17 00:00:00 2001
From: Ali Mihandoost <ali.mihandoost@gmail.com>
Date: Wed, 1 Mar 2023 23:02:54 +0330
Subject: [PATCH] feat(math): calcDiscount

---
 core/math/src/math.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/math/src/math.ts b/core/math/src/math.ts
index 9d4ab94b7..ff6b205f4 100644
--- 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;
+};