Discounts are price reductions offered to consumers, commonly used in retail and e-commerce. Usually a certain percentage of the list price is discounted to attract customers. While benefiting consumers with lower prices, discounts also help businesses increase sales volume and market share.

Discount percent is calculated using the formula:

Where:

• L is the list price
• S is sale price

The discount amount is calculated using the formula:

Where A is the discount amount.

Suppose, the list price of a product is $120 and the discount offered is 20%. Then, we can calculate the sale price which the customer will have to pay as follows:

S = $120 - 20% of $120 - $120 - $24 = $96

Similarly, we can calculate the discount or the list price if the other two values are provided.