Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $8479 and you need to know how much will you save on your purchase if the discount is 99 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (8479 x 99) / 100
Amount Saved = 839421 / 100
Amount Saved = $8394.21 (answer).
In other words, a 99% discount for a purchase with an original price of $8479 equals $8394.21 (Amount Saved), so you'll end up paying 84.790000000001.