Percentage Unit Test Review

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

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 'marked down by 30%' mean?

Back

It means that the price of an item is reduced by 30% of its original price.

Front

If an item costs $150 and is marked down by 30%, what is the new price?

Back

$105

Front

What is the sale price of a $75 dress with a 20% discount?

Back

$60

Front

How do you find what percent one number is of another?

Back

To find what percent one number is of another, divide the first number by the second number and multiply by 100. For example, to find what percent 120 is of 40, calculate (120/40) x 100 = 300%.

Front

If 26 is 5% of what number, how do you find that number?

Back

To find the number, divide 26 by 0.05 (which is 5% in decimal form). So, 26 / 0.05 = 520.

Front

How do you calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For example, for a $45 meal with a 20% tip, calculate 45 x 0.20 = $9.

Front

What is the formula to calculate the new price after a discount?

Back

New Price = Original Price - (Original Price x Discount Percentage).

Front

What is the difference between 'discount' and 'markup'?

Back

A discount reduces the price of an item, while a markup increases the price of an item.