A discount is when a certain amount or percentage is taken off of an item's regular price. When you go shopping during a festival, they will give you some amount of reduction on the original price. That is called a discount.
Discount = Cost price – Selling Price
Suppose you are at the supermarket, and you want to buy cookies. The cost of cookies is 650, but you get them for just 420 rs. Then what is the discount you got?
Given values are :