IXL | Percent of change | 7th grade math

What is the percent of change from 70 to 63?

10% decrease

9% increase

10% increase

9% decrease

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Learn with an example

question

What is the percent of change from 25 to 10?

60% increase

63% decrease

60% decrease

63% increase

key idea

percent of change

amount of change

original amount

solution

Plug 25 and 10 into the formula for percent of change and simplify.

percent of change

amount of change

original amount

25 − 10

0.6

Write the number as a percent.

0.6 → 60%

Finally, figure out whether the percent of change is an increase or decrease. Since the number goes down from 25 to 10, it is a decrease.

The percent of change is a 60% decrease.

Looking for more? Try these:

Lesson: Percent change

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Teacher tools

Work it out

Not feeling ready yet? These can help:

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

O.2Convert between percents, fractions, and decimals

O.5Solve percent problems using strip models

Lesson: Percent change

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