Percent Increase & Decrease

Front

What is percent increase?

Back

Percent increase is the amount of increase expressed as a percentage of the original amount. It is calculated using the formula: ((New Value - Original Value) / Original Value) x 100.

Front

What is percent decrease?

Back

Percent decrease is the amount of decrease expressed as a percentage of the original amount. It is calculated using the formula: ((Original Value - New Value) / Original Value) x 100.

Front

How do you calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total amount by the tip percentage (as a decimal). For example, for a $20 meal with a 20% tip: $20 x 0.20 = $4.

Front

What is markup?

Back

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

Front

How do you calculate the total price after markup?

Back

To calculate the total price after markup, use the formula: Total Price = Cost Price + (Cost Price x Markup Percentage).

Front

What is the formula for calculating percent change?

Back

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

Front

If a camera originally costs $50 and is now $38, what is the percent decrease?

Back

Percent Decrease = ((50 - 38) / 50) x 100 = 24%.

Front

If attendance at a festival increased from 2,376 to 2,950, how do you find the percent increase?

Back

Percent Increase = ((2,950 - 2,376) / 2,376) x 100 = 24%.

Front

What does a 30% markup on a $4.25 book cost?

Back

Total Price = $4.25 + ($4.25 x 0.30) = $5.53.

Front

What is the original price if the sale price is $38 and the percent decrease is 24%?

Back

Original Price = Sale Price / (1 - Percent Decrease) = $38 / (1 - 0.24) = $50.