Your firm is considering purchasing a machine with the following annual, end-of-year, book investment accounts. the machine generates, on average. $7,900 per year in additional net income What is the average accounting return for this machine? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places (e.g.. 32.16).) Solution Answer: Calculation of the average accounting return for this machine: AAR=(Average Annual Profit after tax/Average investment over the life of the Project)*100 =($7900/$73000)*100 =10.82%.