The average cost of a car in 1990 was $12,500. In 2010, the average price of a car was $21,800.

The average cost of a car in 1990 was $12,500. In 2010, the average price of a car was $21,800. What is the percentage increase in the average price of a car? Round your answer to the nearest tenth of a percent.

 

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The actual increase is 21800-12500=$9300. The percentage increase is 9300/12500=93/125=0.744=74.4%.

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