Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $15 and you need to know how much will you save on your purchase if the discount is 25 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (15 x 25) / 100
Amount Saved = 375 / 100
Amount Saved = $3.75 (answer).
In other words, a 25% discount for a purchase with an original price of $15 equals $3.75 (Amount Saved), so you'll end up paying 11.25.