Percent Increase & Decrease

Front

What is percent increase?

Back

Percent increase is a measure of how much a quantity has grown relative to its original amount, expressed as a percentage. It is calculated using the formula: ((New Value - Original Value) / Original Value) * 100.

Front

What is percent decrease?

Back

Percent decrease is a measure of how much a quantity has reduced relative to its original amount, expressed as a percentage. It is calculated using the formula: ((Original Value - New Value) / Original Value) * 100.

Front

How do you calculate the tax on a purchase?

Back

To calculate the tax on a purchase, multiply the purchase price by the tax rate (expressed as a decimal). The formula is: Tax = Purchase Price * Tax Rate.

Front

What is the formula for calculating percent change?

Back

The formula for calculating percent change is: Percent Change = ((New Value - Original Value) / Original Value) * 100.

Front

If a product's price decreases from $50 to $30, what is the percent decrease?

Back

Percent Decrease = ((50 - 30) / 50) * 100 = 40%.

Front

If a person's weight increases from 120 pounds to 150 pounds, what is the percent increase?

Back

Percent Increase = ((150 - 120) / 120) * 100 = 25%.

Front

What does a 40% decrease in price mean?

Back

A 40% decrease in price means that the new price is 40% less than the original price.

Front

What is the significance of a tax rate in calculating total cost?

Back

The tax rate determines how much additional cost is added to the purchase price, affecting the total amount paid.

Front

How do you express a percent change as a fraction?

Back

To express a percent change as a fraction, divide the percent change by 100. For example, a 20% change is expressed as 20/100 or 1/5.

Front

What is the difference between absolute change and percent change?

Back

Absolute change is the actual difference between the new value and the original value, while percent change expresses that difference relative to the original value as a percentage.