Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $799 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 = (799 x 42) / 100
Amount Saved = 33558 / 100
Amount Saved = $335.58 (answer).
In other words, a 42% discount for a purchase with an original price of $799 equals $335.58 (Amount Saved), so you'll end up paying 463.42.