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Math Help: Percent increase and decrease

Refresh your competency in the various areas of Mathematics.


In this module, you can study how to calculate percent increase and percent decrease.


Did you know?

100 reduced by 25% is 75, but 75 increased by 25% is not 100!

If an house price increases 20% one year and 10% the next year, it has gone up 32% (not 30%!) of the original value.


Study and practice

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