Calculating 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 x 0.20 = 10.

Front

What does a 50% discount mean?

Back

A 50% discount means that the price is reduced by half. If an item costs $100, a 50% discount would reduce the price to $50.

Front

How do you find the final price after multiple discounts?

Back

To find the final price after multiple discounts, apply each discount sequentially to the price after the previous discount.

Front

If an item costs $80 and is on sale for 25% off, what is the sale price?

Back

The sale price is $60. (Calculation: 80 - (80 x 0.25) = 60.)

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.

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How do you calculate the total cost including sales tax?

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To calculate the total cost including sales tax, multiply the original price by the sales tax rate (in decimal form) and add it to the original price.

Front

If a meal costs $50 and the sales tax is 8%, what is the total cost?

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The total cost is $54. (Calculation: 50 + (50 x 0.08) = 54.)

Front

What is a tip?

Back

A tip is a small amount of money given to service workers for their service, usually calculated as a percentage of the total bill.

Front

How do you calculate a tip based on the total bill?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For example, for a $40 bill with an 18% tip, calculate 40 x 0.18 = 7.20.