PERCENT OF CHANGE (INCREASE OR DECREASE)

Front

What is Percent of Change?

Back

Percent of Change is a way to express the difference between an old value and a new value as a percentage of the old value.

Front

How do you calculate Percent of Change?

Back

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

Front

What does a positive Percent of Change indicate?

Back

A positive Percent of Change indicates an increase in value.

Front

What does a negative Percent of Change indicate?

Back

A negative Percent of Change indicates a decrease in value.

Front

If a price decreases from $50 to $30, what is the Percent of Change?

Back

Percent of Change = ((30 - 50) / 50) x 100 = -40% (Decrease of 40%).

Front

If a student scores 60 on a test and then scores 75 on a retake, what is the Percent of Change?

Back

Percent of Change = ((75 - 60) / 60) x 100 = 25% (Increase of 25%).

Front

What is the Percent of Change when a population increases from 200 to 250?

Back

Percent of Change = ((250 - 200) / 200) x 100 = 25% (Increase of 25%).

Front

What is the Percent of Change when a car's value drops from $20,000 to $15,000?

Back

Percent of Change = ((15,000 - 20,000) / 20,000) x 100 = -25% (Decrease of 25%).

Front

If a store sells 100 items in January and 80 items in February, what is the Percent of Change?

Back

Percent of Change = ((80 - 100) / 100) x 100 = -20% (Decrease of 20%).

Front

What is the formula for calculating Percent Increase?

Back

Percent Increase = ((New Value - Old Value) / Old Value) x 100.