Percent Change and Percent Error

Front

Find the percent of change from 53 words to 62 words.

Back

17.0% increase

Front

Find the percent of change from $18.50 to $22.10. Round to the nearest tenth of a percent.

Back

19.5% increase

Front

Find the percent error. Round to the nearest tenth of a percent. Actual speed: 38 mph Estimated speed: 35 mph

Back

7.9%

Front

Find the percent error. Estimated length: 32 in. Actual length: 54 in.

Back

40.7%

Front

Javier swims 80 laps each weekday in May and 60 laps each weekday in June. What is the percent change from May to June?

Back

25% decrease

Front

Alex buys an antique car for $45,800, restores it, and then sells it for $61,830. Find the percent of change. Is it an increase or a decrease?

Back

35% increase

Front

Fifty-two of 80 marbles are red. What percent of the marbles are red?

Back

65%

Front

Of 120 owners of reptiles surveyed, 27 own snakes as pets. What percent of the reptile owners own snakes as pets?

Back

22.5%

Front

A study reported that 15% of toddlers have food allergies. If 14,500 parents of toddlers were polled, how many parents made this claim?

Back

2175 parents

Front

Eighteen is what percent of 125?

Back

14.4%