Unit 6 review - percents

Front

What is percent change?

Back

Percent change is a measure of how much a quantity has increased or decreased relative to its original value, expressed as a percentage.

Front

How do you calculate percent change?

Back

Percent Change = ((New Value - Old Value) / Old Value) x 100.

Front

What is the formula to calculate sales tax?

Back

Sales Tax = Price of Item x Tax Rate.

Front

If an item costs $100 and the sales tax is 5%, what is the total cost?

Back

Total Cost = $100 + ($100 x 0.05) = $105.

Front

What is a tip?

Back

A tip is a sum of money given to someone for their service, typically calculated as a percentage of the total bill.

Front

How do you calculate a tip?

Back

Tip = Total Bill x Tip Percentage.

Front

If a meal costs $50 and you leave a 20% tip, how much is the tip?

Back

Tip = $50 x 0.20 = $10.

Front

What does '25% off' mean?

Back

'25% off' means that the price of an item is reduced by 25% of its original price.

Front

If a shirt costs $40 and is on sale for 25% off, what is the discount?

Back

Discount = $40 x 0.25 = $10.

Front

How do you find the final price after a discount?

Back

Final Price = Original Price - Discount.