Percents Practice

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 is the formula to find the sale price after a discount?

Back

Sale Price = Original Price - Discount.

Front

If an item costs $40 and is on sale for 25% off, what is the sale price?

Back

Sale Price = $40 - ($40 * 0.25) = $30.

Front

What is sales tax?

Back

Sales tax is a percentage added to the price of goods and services, collected by the seller and paid to the government.

Front

How do you calculate the total price including sales tax?

Back

Total Price = Cost + (Cost * Sales Tax Rate). For example, if an item costs $50 and the sales tax is 8%, Total Price = $50 + ($50 * 0.08) = $54.

Front

What is the formula to find the discount amount?

Back

Discount Amount = Original Price * Discount Rate.

Front

If a shirt originally costs $20 and is discounted by 15%, what is the discount amount?

Back

Discount Amount = $20 * 0.15 = $3.

Front

How do you find the original price if you know the sale price and the discount?

Back

Original Price = Sale Price / (1 - Discount Rate).

Front

If a pair of shoes is sold for $45 after a 10% discount, what was the original price?

Back

Original Price = $45 / (1 - 0.10) = $50.