Calculate the percent of change of the item's price each decade, and use your results to determine the average rate of change from 1960–2000. if a movie ticket costs $0.69 in 1960, $1.55 in 1970, $2.60 in 1980, $4.23 in 1990 and $5.39 in 2000, what is the average rate of change from 1960 to 2000.