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 determine if a value has increased or decreased?

Back

If the new value is greater than the original value, it is an increase. If the new value is less than the original value, it is a decrease.

Front

Calculate the percent increase from 12 to 36.

Back

Percent Increase = ((36 - 12) / 12) x 100 = 200%.

Front

Calculate the percent decrease from $500 to $413.

Back

Percent Decrease = (($500 - $413) / $500) x 100 = 17.4%.

Front

Calculate the percent decrease from 285 shirts to 114 shirts.

Back

Percent Decrease = ((285 - 114) / 285) x 100 = 60%.

Front

What is the formula for calculating percent change?

Back

Percent Change = ((New Value - Original Value) / Original Value) x 100.

Front

If the original number is 35 and the new number is 70, what is the percent increase?

Back

Percent Increase = ((70 - 35) / 35) x 100 = 100%.

Front

If Mrs. Mroc's class size increases from 35 to 42, what is the percent change?

Back

Percent Change = ((42 - 35) / 35) x 100 = 20%.

Front

What does a 100% increase mean?

Back

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