Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $220 and you need to know how much will you save on your purchase if the discount is 66 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (220 x 66) / 100
Amount Saved = 14520 / 100
Amount Saved = $145.2 (answer).
In other words, a 66% discount for a purchase with an original price of $220 equals $145.2 (Amount Saved), so you'll end up paying 74.8.