Double Percent Increase/Decrease

Front

What is a percent increase?

Back

A percent increase is a way to express how much a quantity has grown in relation to its original amount, calculated as: ((new value - original value) / original value) x 100.

Front

What is a percent decrease?

Back

A percent decrease is a way to express how much a quantity has shrunk in relation to its original amount, calculated as: ((original value - new value) / original value) x 100.

Front

How do you calculate the final price after a percent increase?

Back

To calculate the final price after a percent increase, multiply the original price by (1 + percent increase as a decimal).

Front

How do you calculate the final price after a percent decrease?

Back

To calculate the final price after a percent decrease, multiply the original price by (1 - percent decrease as a decimal).

Front

What is a markup?

Back

A markup is the amount added to the cost price of goods to cover overhead and profit, often expressed as a percentage of the cost price.

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

If a hat costs $4 and is marked up by 200%, what is the selling price?

Back

Selling price = Cost + (Markup % of Cost) = $4 + (200% of $4) = $12.

Front

If a product is sold for $10 and has a 10% discount, what is the final price?

Back

Final price = Selling price - (Discount % of Selling price) = $10 - (10% of $10) = $9.

Front

How do you calculate total cost including tax and tip?

Back

Total cost = (Food bill + Sales Tax) + Tip, where Sales Tax = Food bill x Tax rate and Tip = Food bill x Tip rate.

Front

What is the formula for percent change?

Back

Percent change = ((new value - old value) / old value) x 100.