Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $8515 and you need to know how much will you save on your purchase if the discount is 80 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (8515 x 80) / 100
Amount Saved = 681200 / 100
Amount Saved = $6812 (answer).
In other words, a 80% discount for a purchase with an original price of $8515 equals $6812 (Amount Saved), so you'll end up paying 1703.