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 a shirt costs $20 and is marked up to $25, what is the percent increase?

Back

Percent Increase = ((25 - 20) / 20) x 100 = 25%.

Front

If a car's value decreases from $15,000 to $12,000, what is the percent decrease?

Back

Percent Decrease = ((15000 - 12000) / 15000) x 100 = 20%.

Front

What is the formula to find a percentage of a number?

Back

Percentage of a number = (Percentage / 100) x Total Number.

Front

Find 50% of 200.

Back

100.

Front

Find 25% of 80.

Back

20.

Front

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

Back

Percent Increase = ((1200 - 1000) / 1000) x 100 = 20%.