SOL Review Percent of Change (23-24)

What is the formula for calculating percent of change?

• New number minus old number, divided by old number, times 100

• Old number minus new number, divided by new number, times 100

• Old number minus new number, divided by old number, times 100

• New number minus old number, divided by new number, times 100

In the first example, what was the initial value?

• 32

• 34

• 50

• 16

What does a negative percent of change indicate?

• An error in calculation

• A decrease

• An increase

• No change

What was the new number in the first example?

• 50

• 34

• 32

• 16

How can a decrease of 32% be expressed?

• -32%

• 32% increase

• 32% decrease

• Both -32% and 32% decrease

Which of the following correctly describes how to express a decrease in percent?

• Positive percentage value

• Negative percentage value

• None of the above

• Zero percentage value

What was the percent of change in the second example?

• 120%

• 12%

• 1.2%

• 10%

What indicates an increase in value?

• Zero

• None of the above

• Negative value

• Positive value

What was the amount of change in the second example?

• 10

• 32

• 22

• 12

How is the percent of change calculated if there is an increase?

• Subtract the new number from the old number, divide by the new number, multiply by 100

• Divide the old number by the new number, multiply by 100

• Subtract the old number from the new number, divide by the old number, multiply by 100

• Add the old number to the new number, divide by the old number, multiply by 100