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Name: Date:

How to find percent of change.

• If percent of change is positive. . .

. . . then

• If percent of change is negative. . .

. . . then

Example:

Yesterday the cost of a new TV was $250. It went on sale today and

was advertised for $200. What is the percent of change?

• Does the percent change represent

an increase or decrease?

• How do you know?

percent of

change

4-4 Percent of Change

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Example 2:

In 2010, there were 12 Atlantic hurricanes. In 2018, there were 18

hurricanes. Find the percent of change.

• Does the percent change represent

an increase or decrease?

• How do you know?