Problem B: A machine costing $350,000 with a 5 -year useful life and $50,000 salvage value is installed on July 1,2021 . The manager estimates that the machine will produce 100,000 units of product during its life. It actually produces the following units during its first three years: Year 135,000 ; Year 2 30,000 ; Year 3 20,000. Instructions: Compute the depreciation expense, accumulated depreciation, and book value for years one through three under straight-line, units of production and double declining balance