Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $1397 and you need to know how much will you save on your purchase if the discount is 81 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (1397 x 81) / 100
Amount Saved = 113157 / 100
Amount Saved = $1131.57 (answer).
In other words, a 81% discount for a purchase with an original price of $1397 equals $1131.57 (Amount Saved), so you'll end up paying 265.43.