Percent of Change

Front

What is Percent of Change?

Back

Percent of Change is a way to express how much a quantity has increased or decreased in relation to its original amount, calculated as (New Value - Original Value) / Original Value x 100%.

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How do you calculate the percent increase?

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To calculate percent increase, use the formula: ((New Value - Original Value) / Original Value) x 100%.

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How do you calculate the percent decrease?

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To calculate percent decrease, use the formula: ((Original Value - New Value) / Original Value) x 100%.

Front

If an item costs $50 and is now $75, what is the percent of change?

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50% increase.

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If a shirt originally cost $40 and is now $30, what is the percent of change?

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25% decrease.

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What is the percent of change if a car's value drops from $20,000 to $15,000?

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25% decrease.

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If a book's price increases from $10 to $12, what is the percent of change?

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20% increase.

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What is the percent of change if a student scores 80 on a test and then scores 90 on the next test?

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12.5% increase.

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If a plant grows from 5 inches to 8 inches, what is the percent of change?

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60% increase.

Front

If a laptop's price goes from $800 to $600, what is the percent of change?

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25% decrease.