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, 20% of 50 is 50 * 0.20 = 10.

Front

What is the formula to find the percentage score?

Back

Percentage Score = (Score Obtained / Total Score) * 100.

Front

If 40% of a class of 30 students are boys, how many boys are there?

Back

12 boys.

Front

What is 20% of 102?

Back

20.4.

Front

How do you calculate the sale price after a discount?

Back

Sale Price = Original Price - (Discount Percentage * Original Price).

Front

If a jacket costs $150 and has a 20% discount, what is the sale price?

Back

$120.

Front

What is sales tax?

Back

Sales tax is a percentage of the sale price that is added to the total cost of a purchase.

Front

How do you calculate sales tax?

Back

Sales Tax = Sale Price * Sales Tax Rate.

Front

If Mr. Lucas bought a chair for $425 with an 8.2% sales tax, how much tax did he pay?

Back

$34.85.