On January 4, 1967 the price of a widget was $78.51. On January 4, 1998 the price of a widget was $38.48. Find the average rate of change in the price of a widget from 1967 to 1998. Round to the nearest cent.

The average rate of change is $LaTeX: \displaystyle \frac{38.48-78.51}{1998-1967}= -1.29$ dollars per year.