Percent Flashcard

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you calculate the percent discount on an item?

Back

To calculate the percent discount, subtract the sale price from the original price, divide the result by the original price, and then multiply by 100. Formula: Percent Discount = ((Original Price - Sale Price) / Original Price) * 100.

Front

If an item originally costs $80 and is on sale for $60, what is the percent discount?

Back

Percent Discount = ((80 - 60) / 80) * 100 = 25%.

Front

What is a percent increase?

Back

A percent increase measures how much a quantity has grown compared to its original amount, expressed as a percentage. Formula: Percent Increase = ((New Value - Original Value) / Original Value) * 100.

Front

If attendance at a concert increased from 300 to 450, what is the percent increase?

Back

Percent Increase = ((450 - 300) / 300) * 100 = 50%.

Front

What is the formula to find the original price if you know the sale price and the percent discount?

Back

Original Price = Sale Price / (1 - (Percent Discount / 100)).

Front

If a shirt is sold for $30 after a 20% discount, what was the original price?

Back

Original Price = 30 / (1 - 0.20) = $37.50.

Front

How do you calculate the sales tax on a purchase?

Back

To calculate sales tax, multiply the purchase price by the sales tax rate (as a decimal). Formula: Sales Tax = Purchase Price * Sales Tax Rate.

Front

If you buy a video game for $50 and the sales tax is 8%, how much tax do you pay?

Back

Sales Tax = 50 * 0.08 = $4.00.

Front

What is the relationship between a score and a percentage?

Back

A score can be converted to a percentage by dividing the score by the total possible score and multiplying by 100. Formula: Percentage = (Score / Total Score) * 100.