A1 Jefar Jewel Co. purchased a crystal extraction machine for $50,000 that has an estimated salvage value of $10,000 at the end of its 8-year useful life. Compute the depreciation schedule using: (a) MACRS depreciation (b) Straight-line depreciation (c) Sum-of-years' digits (SOYD) depreciation (J) Double declining balance depreciation.