Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $3978 and you need to know how much will you save on your purchase if the discount is 30 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (3978 x 30) / 100
Amount Saved = 119340 / 100
Amount Saved = $1193.4 (answer).
In other words, a 30% discount for a purchase with an original price of $3978 equals $1193.4 (Amount Saved), so you'll end up paying 2784.6.