Percent Proportion, Discount, Sales Tax

Front

What is the formula to calculate sales tax?

Back

Sales Tax = Purchase Price × Sales Tax Rate.

Front

If you buy an item for $50 and the sales tax is 8%, how much is the sales tax?

Back

Sales Tax = $50 × 0.08 = $4.

Front

What does it mean when a price is discounted by a certain percentage?

Back

A discount reduces the original price by a specified percentage.

Front

If an item originally costs $100 and is on sale for 20% off, what is the sale price?

Back

Sale Price = Original Price - (Original Price × Discount Rate) = $100 - ($100 × 0.20) = $80.

Front

What is a percent proportion?

Back

A percent proportion is a way to express a part of a whole as a percentage.

Front

How do you find what number a percentage represents?

Back

To find the number, divide the part by the percentage (in decimal form).

Front

What is the relationship between percentages, fractions, and decimals?

Back

Percentages can be converted to fractions and decimals: % = fraction/100 = decimal.

Front

If 34% of a number is 51, how do you find the number?

Back

Number = 51 / 0.34 = 150.

Front

What is the first step in solving a percent problem?

Back

Identify the whole and the part you are working with.

Front

How do you calculate the percentage score on a test?

Back

Percentage Score = (Number of Correct Answers / Total Questions) × 100.