On January 4, 1985 the price of a sprocket was $40.85. On January 4, 2016 the price of a sprocket was $63.98. Find the average rate of change in the price of a sprocket from 1985 to 2016. Round to the nearest cent.

The average rate of change is $LaTeX: \displaystyle \frac{63.98-40.85}{2016-1985}= 0.75$ dollars per year.