Differential Analysis for a Lease or Sell Decision Granite Construction Company is considering selling excess machinery with a book value of $280,100 (original cost of $400,600 less accumulated depreciation of $120,500) for $276,400, less a 5% brokerage commission. Alternatively, the machinery can be leased for a total of $285,400 for five years, after which it is expected to have no residual value. During the period of the lease, Granite Construction Company's costs of repairs, insurance, and property tax expenses are expected to be $25,700. a. Prepare a differential analysis, dated November 7 to determine whether Granite should lease (Alternative 1) or sell (Alternative 2) the machinery. Differential Analysis Lease Machinery (Alt. 1) or Sell Machinery (Alt. 2) November 7 Lease Machinery (Alternative 1) Sell Machinery (Alternative 2) Differential Effect on Income (Alternative 2) 285,400 $ 276,400 $ 8,700 Revenues Costs 25,700 17,520 x 7,095 X Income (Loss) 259,700 257,495 X 1,605 X