Chris H. answered • 10/26/15

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Percent increase is defined as the amount of increase over the original amount expressed as a percent.

**Amount of increase:**97.20 - 82.50 =

**14.70**

**Original amount: 82.50**

**Increase / Original:**14.70 / 82.50 = 0.178181...

**Express as a percentage:**0.178181... x 100 is approximately

**17.82 % increase**

You will likely want to round your answer as appropriate for a given question.