You are evaluating two different silicon wafer milling machines. The Techron I c

Question

You are evaluating two different silicon wafer milling machines. The Techron I costs $216,000, has a three-year life, and has pretax operating costs of $55,000 per year. The Techron II costs $380,000, has a five-year life, and has pretax operating costs of $28,000 per year. For both milling machines, use straight-line depreciation to zero over the project’s life and assume a salvage value of $32,000. If your tax rate is 35 percent and your discount rate is 10 percent, compute the EAC for both machines. (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations and round your final answers to 2 decimal places. (e.g., 32.16))

Explanation / Answer

The two milling machines have unequal lives, so they can only be compared by expressing both on an equivalent annual basis, which is what the EAC method does. Thus, you prefer the Techron II because it has the lower (less negative) annual cost

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