Computing Straight-Line and Double-Declining-Balance Depreciation On January 2, 2016, Fischer Company purchases a machine that manufactures a part for one of its key products. The machine cost $370, 440 and is estimated to have a useful life of six years, with an expected salvage value of $31, 500. Compute depreciation expense for 2016 and 2017 for the following depreciation methods. a. Straight-line. b. Double-declining balance