On January 4, 1960 the price of a widget was $22.50. On January 4, 1971 the price of a widget was $82.15. Find the average rate of change in the price of a widget from 1960 to 1971. Round to the nearest cent.

The average rate of change is $LaTeX: \displaystyle \frac{82.15-22.50}{1971-1960}= 5.42$ dollars per year.