Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $5550 and you need to know how much will you save on your purchase if the discount is 100 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (5550 x 100) / 100
Amount Saved = 555000 / 100
Amount Saved = $5550 (answer).
In other words, a 100% discount for a purchase with an original price of $5550 equals $5550 (Amount Saved), so you'll end up paying 0.