Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $3990 and you need to know how much will you save on your purchase if the discount is 82 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (3990 x 82) / 100
Amount Saved = 327180 / 100
Amount Saved = $3271.8 (answer).
In other words, a 82% discount for a purchase with an original price of $3990 equals $3271.8 (Amount Saved), so you'll end up paying 718.2.