On January 4, 1976 the price of a stembolt was $32.94. On January 4, 1991 the price of a stembolt was $100.83. Find the average rate of change in the price of a stembolt from 1976 to 1991. Round to the nearest cent.

The average rate of change is $LaTeX: \displaystyle \frac{100.83-32.94}{1991-1976}= 4.53$ dollars per year.