Percent Change & Tax, Tip, Markup, Discount

Front

What is percent change?

Back

Percent change is a way to express a change in value as a percentage of the original value. It is calculated using the formula: ((new value - old value) / old value) x 100.

Front

How do you calculate a sale price after a discount?

Back

To calculate the sale price after a discount, subtract the discount amount from the original price. The discount amount is found by multiplying the original price by the discount percentage.

Front

What is a tip?

Back

A tip is a small amount 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

To calculate a tip, multiply the total bill by the tip percentage. For example, for an 18% tip on a $67.45 bill, multiply 67.45 by 0.18.

Front

What is markup?

Back

Markup is the amount added to the cost price of goods to cover overhead and profit. It is usually expressed as a percentage of the cost price.

Front

How do you calculate markup?

Back

To calculate markup, subtract the cost price from the selling price, then divide by the cost price and multiply by 100 to get the percentage.

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 find the percent decrease?

Back

To find the percent decrease, subtract the new value from the old value, divide by the old value, and multiply by 100.

Front

If an item costs $80 and is sold for $64, what is the percent decrease?

Back

The percent decrease is 20%. (Calculation: ((80 - 64) / 80) x 100 = 20%).

Front

If a score drops from 90 points to 45 points, what is the percent decrease?

Back

The percent decrease is 50%. (Calculation: ((90 - 45) / 90) x 100 = 50%).