A store normally sells a computer for $1600, but I was able to purchase my computer for $1,280. What percent discount did I receive?

Answer 1

The amount of money saved is the difference between the regular price and the purchase price. For the computer in this problem, that would be:

$1600 - 1280 = $320

To determine what the percent discount would be represented by $320 , you need to find what percent $320 is out of $1600.

Since 10% of $1600 is $160, then $320 would represent a 20% savings (320 is twice 160 so the percent will double as well).

You can also use equivalent ratios to find the percent:

Part/whole = %/100

320/1600 = x/100

Since 1600/100 is 16, you can divide 320 by 16 to find the percent: 320/16 = 20%