Percent of Change: Find the Original Amount Word Problems

Livi's favorite oak tree's height increases from 10 meters to 13 meters over a few years. What is the percentage increase?

• 25%

• 30%

• 35%

• 40%

Finding the original quantity given the percentage and the result: If 40% of a quantity is 120, what is the original quantity?

• 300

• 500

• 200

• 80

Calculate the percent change from 50 to 75.

• 25%

• 50%

• 75%

• 100%

If the population of a city increased from 500,000 to 600,000, what is the percent change?

• 10%

• 20%

• 25%

• 15%

Find the Percent of Change.  Round to nearest Percent.
Microwave:  Originally $96 then price increases to $115.20

• 20% Increase

• 17% Increase

• 20% Decrease 

• 17% Decrease

Miss Smith needed a new pair of gym shoes.  The original cost of the shoes was $120.00, but she was lucky and they were on sale for $69.98.  Calculate the percent change for her shoes (round to the nearest percent).

• 42%

• 50%

• 70%

• 73%

The original price of a purse was $45, but it was changed to $54. Calculate the percent change.

• 9%

• 20%

• 45%

• 54%

Amanda increased the amount of protein she eats every day from 48 g to 54 g. By what percentage did Amanda increase the amount of protein she eats?

• 11.1%

• 88.9%

• 112.5%

• 12.5%

Cody weighed 110 pounds when he started 6th grade but now weighs 150 pounds as a 7th grader. What is the percent of increase in his weight?

• 36%

• 26%

• 33%

• 38%

Last week, you finished level 2 of a video game in 32 minutes. Today, you finished level 2 in 28 minutes. What is your percent of change?

• Increase 12.5%

• Decrease 12.5%

• Increase 4%

• Decrease 4%

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CCSS.MATH.CONTENT.7.RP.A.3