Percent Change

Front

What is percent change?

Back

Percent change is a way to express a change in a quantity as a percentage of the original amount. It can be an increase or a decrease.

Front

How do you calculate percent increase?

Back

Percent Increase = ((New Value - Original Value) / Original Value) x 100

Front

How do you calculate percent decrease?

Back

Percent Decrease = ((Original Value - New Value) / Original Value) x 100

Front

What is the formula for finding the new value after a percent increase?

Back

New Value = Original Value + (Original Value x Percent Increase) / 100

Front

What is the formula for finding the new value after a percent decrease?

Back

New Value = Original Value - (Original Value x Percent Decrease) / 100

Front

If a product's price increases from $50 to $75, what is the percent increase?

Back

Percent Increase = ((75 - 50) / 50) x 100 = 50%.

Front

If a product's price decreases from $100 to $80, what is the percent decrease?

Back

Percent Decrease = ((100 - 80) / 100) x 100 = 20%.

Front

What does a 100% increase mean?

Back

A 100% increase means the new value is double the original value.

Front

What does a 50% decrease mean?

Back

A 50% decrease means the new value is half of the original value.

Front

If attendance at a concert decreased from 200 to 150, what is the percent decrease?

Back

Percent Decrease = ((200 - 150) / 200) x 100 = 25%.