Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $628 and you need to know how much will you save on your purchase if the discount is 70 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (628 x 70) / 100
Amount Saved = 43960 / 100
Amount Saved = $439.6 (answer).
In other words, a 70% discount for a purchase with an original price of $628 equals $439.6 (Amount Saved), so you'll end up paying 188.4.