Percent Increase/Decrease (5.1)

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What is Percent Increase?

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Percent Increase is the amount of increase expressed as a percentage of the original amount. It is calculated using the formula: ((New Value - Original Value) / Original Value) x 100.

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What is Percent Decrease?

Back

Percent Decrease is the amount of decrease expressed as a percentage of the original amount. It is calculated using the formula: ((Original Value - New Value) / Original Value) x 100.

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How do you calculate the percent change?

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Percent Change = ((New Value - Original Value) / Original Value) x 100.

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Find Percent Change: From 248 workers to 200 workers

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19% decrease.

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Find Percent Change: From 2376 attendees to 2950 attendees

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24% increase.

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Find Percent Change: From 126 cups to 48 cups

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62% decrease.

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Find the new amount: 710 zebras after 10% decrease

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639 zebras.

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Find Percent Change: From 24 people to 30 people

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25% increase.

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What is the formula for calculating new amount after a percent decrease?

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New Amount = Original Amount - (Original Amount x Percent Decrease).

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What is the formula for calculating new amount after a percent increase?

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New Amount = Original Amount + (Original Amount x Percent Increase).