Percent Increase and Percent Decrease

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Videos, worksheets, and solutions to help Grade 8 students learn how to calculate percent increase and percent decrease.

What is the formula for percent increase?
\[{\rm{\% \: increase = }}\frac{{{\rm{amount \:of\: increase}}}}{{{\rm{original\: amount}}}} \times 100\% \]

What is the formula for percent decrease?
\[{\rm{\% \: decrease = }}\frac{{{\rm{amount \:of\: decrease}}}}{{{\rm{original\: amount}}}} \times 100\% \]

Learn how to find the percent increase or decrease between two numbers. Percent Increase & Decrease 1 Percent Increase & Decrease 2 Percent Increase & Decrease 3