percentage of the whole number that you are taking away
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look in your math book maybe.
20 percent out of a hundred.
Percent change is the percent amount some value has changed. It has phenomenal usage in every day math and in fields such as business. It's often used to calculate the percent difference in sales between years for business.
Percent decrease is when your overall percentage goes down. Example: I take a 4 problem math test and get one wrong, 75%. I take a 2 problem math test and get one wrong, 50%.
Math time! First change 20 percent to a decimal. (.2) then multiply 50 by .2And you get: 10