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 percent of change?

Back

To calculate the percent of change, subtract the original value from the new value, divide by the original value, and multiply by 100.

Front

If a price goes from $50 to $40, what is the percent decrease?

Back

The percent decrease is 20%.

Front

If a population increases from 1,000 to 1,200, what is the percent increase?

Back

The percent increase is 20%.

Front

What is the formula for finding the difference between two amounts?

Back

The difference is found by subtracting the smaller number from the larger number.

Front

If a shirt originally costs $30 and is now $24, what is the percent decrease?

Back

The percent decrease is 20%.

Front

What does it mean if a value increases by 25%?

Back

It means the new value is 125% of the original value.

Front

What does it mean if a value decreases by 10%?

Back

It means the new value is 90% of the original value.

Front

How do you round a percent change to the nearest whole percent?

Back

Look at the decimal part; if it is 0.5 or higher, round up. If it is less than 0.5, round down.