IXL | Percent of change | 8th grade math

What is the percent of change from 5 to 8?

59% decrease

59% increase

60% decrease

60% increase

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question

What is the percent of change from 4,000 to 6,000?

5% increase

5% decrease

50% increase

50% decrease

key idea

percent of change

amount of change

original amount

solution

Plug 4,000 and 6,000 into the formula for percent of change and simplify.

percent of change

amount of change

original amount

6,000 − 4,000

4,000

2,000

4,000

0.5

Write the number as a percent.

0.5 → 50%

Finally, figure out whether the percent of change is an increase or decrease. Since the number goes up from 4,000 to 6,000, it is an increase.

The percent of change is a 50% increase.

Looking for more? Try these:

Lesson: Percent change

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Not feeling ready yet? These can help:

H.3Find what percent one number is of another

D.8Add, subtract, multiply, or divide two decimals

Lesson: Percent change

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