Percent Increase and Decrease

Front

What is percent increase?

Back

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

Front

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 Amount - New Amount) / Original Amount) x 100.

Front

How do you calculate the new amount after a percent increase?

Back

To calculate the new amount after a percent increase, use the formula: New Amount = Original Amount + (Original Amount x Percent Increase).

Front

How do you calculate the new amount after a percent decrease?

Back

To calculate the new amount after a percent decrease, use the formula: New Amount = Original Amount - (Original Amount x Percent Decrease).

Front

Find the new amount: 100 points; 20% increase.

Back

120 points.

Front

Find the new amount: 200 dollars; 15% decrease.

Back

170 dollars.

Front

What is the formula for percent of change?

Back

Percent of change = ((New Amount - Original Amount) / Original Amount) x 100.

Front

Find the percent of change from 50 to 75.

Back

50% increase.

Front

Find the percent of change from 200 to 150.

Back

25% decrease.

Front

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

Back

25% increase.