Percent of Change Practice

Front

What is percent of change?

Back

Percent of change is a way to express how much a quantity has increased or decreased in relation to its original amount, calculated as (New Value - Original Value) / Original Value x 100%.

Front

How do you calculate the percent increase?

Back

To calculate percent increase, use the formula: ((New Value - Original Value) / Original Value) x 100%.

Front

How do you calculate the percent decrease?

Back

To calculate percent decrease, use the formula: ((Original Value - New Value) / Original Value) x 100%.

Front

If a shirt costs $30 and is marked down to $24, what is the percent decrease?

Back

Percent decrease = ((30 - 24) / 30) x 100% = 20%.

Front

If a bike was originally priced at $200 and is now $250, what is the percent increase?

Back

Percent increase = ((250 - 200) / 200) x 100% = 25%.

Front

What is a markup in pricing?

Back

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

If a store buys a jacket for $40 and sells it for $60, what is the percent markup?

Back

Percent markup = ((60 - 40) / 40) x 100% = 50%.

Front

What does it mean if the percent of change is negative?

Back

A negative percent of change indicates a decrease in value.

Front

What does it mean if the percent of change is positive?

Back

A positive percent of change indicates an increase in value.

Front

If the price of a video game goes from $50 to $30, what is the percent decrease?

Back

Percent decrease = ((50 - 30) / 50) x 100% = 40%.