BE11-2 (Page 11 - 36) - Lockard Company purchased machinery on January 1, 2019, for 80,000. The machinery is estimated to have a residual value of 8,000 after a useful life of 8 years. (a). Compute 2019 depreciation expense using the straight-line method. (b). Compute 2019 depreciation expense using straight-line method, assuming the machinery was purchased on September 1, 2019