Percent Increase/Decrease

Front

What is percent increase?

Back

Percent increase is a measure of how much a quantity has grown relative to its original amount, expressed as a percentage.

Front

What is percent decrease?

Back

Percent decrease is a measure of how much a quantity has shrunk relative to its original amount, expressed as a percentage.

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

If the original number is 50 and the new number is 75, what is the percent increase?

Back

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

Front

If the original number is 80 and the new number is 60, what is the percent decrease?

Back

Percent Decrease = ((80 - 60) / 80) x 100 = 25%.

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

From 24 teachers to 30 teachers, what is the percent change?

Back

25% increase.

Front

Mr. Serfass has 25 students and 2 are absent. What is the percent of change in attendance?

Back

8%.