The Sheridan Transportation Company uses a responsibility reporting system to measure the performance of its three investment centres: planes, taxis, and limos$.$ It measures segment performance 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 its 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 amounts. $($Round intermediate calculations and final answers to $0$ decimal places, e$.$g$.1,255.)$ Service revenue$$$603,400$$Variable costs$5,506,800304,400$Contribution margin$211,000424,413$Controllable fixed costs$2,003,000$Controllable margin$91,000188,513$Average operating assets$25,039,4001,450,100$Return on investment$13\%10\%\%$a