11-13 a. Old depreciation = $5,500 per year.
Book value = $55,000 – 5($5,500) = $27,500.
Gain = $35,000 – $27,500 = $7,500.
Tax on book gain = $7,500(0.35) = $2,625.
Price ($55,000)
b.
Depreciation tax shield new
Depreciation tax shield old
Opportunity cost of not selling old machine (after-tax)*
The NPV is negative therefore, the firm should not replace the old machine.
*After-tax opportunity cost of not being able to sell old machine at end of its useful life.
11-14 a. Cost of new machine ($775,000)
Salvage value, old 135,000
Savings due to loss on sale ($450,000 – $135,000) 0.35 110,250
Cash outlay for new machine ($ 529,750)