Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $451 and you need to know how much will you save on your purchase if the discount is 42 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (451 x 42) / 100
Amount Saved = 18942 / 100
Amount Saved = $189.42 (answer).
In other words, a 42% discount for a purchase with an original price of $451 equals $189.42 (Amount Saved), so you'll end up paying 261.58.