Tax, Tip, Discount and Percentage Change

Front

What is a tip?

Back

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

Front

How do you calculate a tip?

Back

To calculate a tip, multiply the total bill by the tip percentage (expressed as a decimal). For example, for a $50 bill with a 15% tip: $50 x 0.15 = $7.50.

Front

What is a discount?

Back

A discount is a reduction in the price of a product or service, often expressed as a percentage of the original price.

Front

How do you calculate the sale price after a discount?

Back

To find the sale price, subtract the discount amount from the original price. Discount amount = Original price x Discount percentage.

Front

What is a percentage change?

Back

Percentage change measures how much a value has increased or decreased relative to its original value, expressed as a percentage.

Front

How do you calculate percent increase?

Back

Percent increase = ((New value - Original value) / Original value) x 100.

Front

How do you calculate percent decrease?

Back

Percent decrease = ((Original value - New value) / Original value) x 100.

Front

What is the formula for calculating a percentage?

Back

Percentage = (Part / Whole) x 100.

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

If a pair of shoes originally costs $80 and is on sale for 25% off, what is the sale price?

Back

Sale price = $80 - ($80 x 0.25) = $60.