Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $1978 and you need to know how much will you save on your purchase if the discount is 10 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (1978 x 10) / 100
Amount Saved = 19780 / 100
Amount Saved = $197.8 (answer).
In other words, a 10% discount for a purchase with an original price of $1978 equals $197.8 (Amount Saved), so you'll end up paying 1780.2.