Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $521 and you need to know how much will you save on your purchase if the discount is 77 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (521 x 77) / 100
Amount Saved = 40117 / 100
Amount Saved = $401.17 (answer).
In other words, a 77% discount for a purchase with an original price of $521 equals $401.17 (Amount Saved), so you'll end up paying 119.83.