Step-by-step explanation:

How to calculate discount and sale price?

Find the original price (for example $90 )

Get the the discount percentage (for example 20% )

Calculate the savings: 20% of $90 = $18.

Subtract the savings from the original price to get the sale price: $90 - $18 = $72.

You're all set!

Step-by-step explanation:

90 - 18 = 72

Your answer is 72