Calculating EAC You are evaluating two different silicon wafer milling machines. The Techron I costs $265,000, has a 3-year life, and has pretax operating costs of $41,000 per year. The Techron II costs $330,000, has a 5-year life, and has pretax operating costs of $52,000 per year. For both milling machines, use straight-line depreciation to zero over the projects life and assume a salvage value of $25,000. If your tax rate is 21 percent and your discount rate is 9 percent, compute the EAC for both machines. Which do you prefer? Why?