Percent Increase & Decrease

Front

What is Percent Increase?

Back

Percent Increase is the amount by which a quantity increases, expressed as a percentage of the original amount.

Front

What is Percent Decrease?

Back

Percent Decrease is the amount by which a quantity decreases, expressed as a percentage of the original amount.

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 increases to $25, what is the percent increase?

Back

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

Front

If a bike was $150 and is now $120, what is the percent decrease?

Back

Percent Decrease = ((150 - 120) / 150) x 100 = 20%.

Front

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

Back

New Value = Original Value + (Original Value x Percent Increase).

Front

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

Back

New Value = Original Value - (Original Value x Percent Decrease).

Front

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

Back

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

Front

If a car's value decreases from $20,000 to $15,000, what is the percent decrease?

Back

Percent Decrease = ((20000 - 15000) / 20000) x 100 = 25%.