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

Front

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

Back

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

Front

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

Back

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

Front

If Mark earned $300 in August and earned 8% more in September, how much did he earn in September?

Back

$324

Front

If John had 136 ml of medicine and after taking some, 119 ml was left, what was the percentage decrease?

Back

12.5%.

Front

A shirt is on sale for 15% off and costs $34. How much was the original price?

Back

$40.

Front

What is the sale price of a shirt that costs $35 with a 15% discount?

Back

$29.75.

Front

If a notebook costs $600 and is 25% more than a tablet, how much does the tablet cost?

Back

$480.

Front

What is the formula to find the original price from a sale price and discount percentage?

Back

Original Price = Sale Price / (1 - Discount Percentage).