In 2013, selected automobiles had an average cost of $12,000. The average cost of those same automobiles is now $19,270. What was the rate of increase for these automobiles between the two periods? (Enter your answer as a percent rounded to the nearest whole number)
In 2013, selected automobiles had an average cost of $17,000. The average cost of those same automobiles is now $20,000. What was the rate of increase for these automobiles between the two time periods? (Enter your answer as a percent rounded to the nearest whole number)