Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $20 and you need to know how much will you save on your purchase if the discount is 73 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (20 x 73) / 100
Amount Saved = 1460 / 100
Amount Saved = $14.6 (answer).
In other words, a 73% discount for a purchase with an original price of $20 equals $14.6 (Amount Saved), so you'll end up paying 5.4.