Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $91 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 = (91 x 77) / 100
Amount Saved = 7007 / 100
Amount Saved = $70.07 (answer).
In other words, a 77% discount for a purchase with an original price of $91 equals $70.07 (Amount Saved), so you'll end up paying 20.93.