Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $87 and you need to know how much will you save on your purchase if the discount is 5 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (87 x 5) / 100
Amount Saved = 435 / 100
Amount Saved = $4.35 (answer).
In other words, a 5% discount for a purchase with an original price of $87 equals $4.35 (Amount Saved), so you'll end up paying 82.65.