Percent Increase + Decrease

Front

What is percent increase?

Back

Percent increase is a way to express how much a quantity has grown in relation to its original amount, calculated as: ((new value - original value) / original value) x 100.

Front

What is percent decrease?

Back

Percent decrease is a way to express how much a quantity has shrunk in relation to its original amount, calculated as: ((original value - new value) / original value) x 100.

Front

How do you calculate 10% of a number?

Back

To calculate 10% of a number, divide the number by 10.

Front

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

Back

The formula to find a percentage of a number is: (percentage / 100) x total number.

Front

If a shirt costs $50 and is on sale for 20% off, how much do you save?

Back

You save $10, which is 20% of $50.

Front

If a student scores 80 out of 100 on a test, what is their percentage score?

Back

Their percentage score is 80%.

Front

What is the new price of an item that costs $200 after a 15% increase?

Back

The new price is $230, calculated as: $200 + ($200 x 0.15).

Front

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

Back

The percent decrease is 25%, calculated as: (($20,000 - $15,000) / $20,000) x 100.

Front

How much is 25% of 200?

Back

25% of 200 is 50, calculated as: (25 / 100) x 200.

Front

If a person earns $400 and spends 30% of it, how much do they spend?

Back

They spend $120, calculated as: (30 / 100) x $400.