Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $7989 and you need to know how much will you save on your purchase if the discount is 90 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (7989 x 90) / 100
Amount Saved = 719010 / 100
Amount Saved = $7190.1 (answer).
In other words, a 90% discount for a purchase with an original price of $7989 equals $7190.1 (Amount Saved), so you'll end up paying 798.9.