Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $638 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 = (638 x 77) / 100
Amount Saved = 49126 / 100
Amount Saved = $491.26 (answer).
In other words, a 77% discount for a purchase with an original price of $638 equals $491.26 (Amount Saved), so you'll end up paying 146.74.