Percents

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Front

What does it mean to find 65% of a price?

Back

Finding 65% of a price means calculating 65 out of every 100 parts of that price. For example, 65% of $7200 is $4680.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 15% becomes 0.15.

Front

What is 5% of 34?

Back

1.7

Front

How do you find the total amount after a percentage is deducted?

Back

To find the total amount after a percentage is deducted, subtract the percentage amount from the original total. For example, if $100 has 20% deducted, the amount deducted is $20, so the total is $80.

Front

What is 40% of 164?

Back

65.6

Front

How do you calculate tax from a salary?

Back

To calculate tax from a salary, multiply the salary by the tax rate (in decimal form). For example, for a salary of $12,800 with a 15% tax rate, the tax is $12,800 * 0.15 = $1,920.

Front

What is the formula for finding a percentage increase?

Back

The formula for finding a percentage increase is: ((New Value - Original Value) / Original Value) * 100.

Front

What is the formula for finding a percentage decrease?

Back

The formula for finding a percentage decrease is: ((Original Value - New Value) / Original Value) * 100.