On January 4, 1978 the price of a stembolt was $57.75. On January 4, 2011 the price of a stembolt was $82.47. Find the average rate of change in the price of a stembolt from 1978 to 2011. Round to the nearest cent.

The average rate of change is $LaTeX: \displaystyle \frac{82.47-57.75}{2011-1978}= 0.75$ dollars per year.