Percent Increase and Decrease

Front

What is percent increase?

Back

Percent increase is a measure of how much a quantity has grown relative to its original amount, expressed as a percentage. It is calculated using the formula: ((New Value - Original Value) / Original Value) * 100.

Front

What is percent decrease?

Back

Percent decrease is a measure of how much a quantity has shrunk relative to its original amount, expressed as a percentage. It is calculated using the formula: ((Original Value - New Value) / Original Value) * 100.

Front

How do you calculate the percent change?

Back

Percent change can be calculated using the formula: ((New Value - Original Value) / Original Value) * 100. This formula can be used for both percent increase and percent decrease.

Front

If a price decreases from $50 to $30, what is the percent decrease?

Back

The percent decrease is calculated as: ((50 - 30) / 50) * 100 = 40%.

Front

If a salary increases from $40,000 to $50,000, what is the percent increase?

Back

The percent increase is calculated as: ((50,000 - 40,000) / 40,000) * 100 = 25%.

Front

What is the formula to find the final amount after a percent increase?

Back

The final amount after a percent increase can be calculated using the formula: Final Amount = Original Amount + (Original Amount * Percent Increase / 100).

Front

What is the formula to find the final amount after a percent decrease?

Back

The final amount after a percent decrease can be calculated using the formula: Final Amount = Original Amount - (Original Amount * Percent Decrease / 100).

Front

How do you find the original price if you know the sale price and the percent discount?

Back

To find the original price, use the formula: Original Price = Sale Price / (1 - (Percent Discount / 100)).

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What is a real-world example of percent increase?

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A real-world example of percent increase is when a store raises the price of a product from $20 to $25, resulting in a 25% increase.

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What is a real-world example of percent decrease?

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A real-world example of percent decrease is when a car's value drops from $15,000 to $12,000, resulting in a 20% decrease.