The Ferrell Transportation Company uses a responsibility reporting system to measure the performance of its three investment centers: Planes, Taxis, and Limos. Segment performance is measured using a system of responsibility reports and return on investment calculations. The allocation of resources within the company and the segment managers' bonuses are based in part on the results shown in these reports. Recently, the company was the victim of a computer virus that deleted portions of the company's accounting records. This was discovered when the current period's responsibility reports were being prepared. The printout of the actual operating results appeared as follows. Determine the missing pieces of information below. Planes Taxis Limos Service revenue $498,500 $ Variable costs 5,502,400 297,900 Contribution margin 250,900 522,340 Controllable fixed costs 1,499,600 Controllable margin 83,000 277,740 Average operating assets 24,960,500 1,543,000 Return on investment 13 % 8 %