Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $342 and you need to know how much will you save on your purchase if the discount is 4 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (342 x 4) / 100
Amount Saved = 1368 / 100
Amount Saved = $13.68 (answer).
In other words, a 4% discount for a purchase with an original price of $342 equals $13.68 (Amount Saved), so you'll end up paying 328.32.