. A company paid $50,000 for some research equipment, which it believes will have zero salvage value at the end of its 5-year life. Compute the depreciation schedule using each of the following methods: (a) Straight line (b) Double declining balance (c) Sum-of-years-digits (d) 100% bonus depreciation (e) Modified accelerated cost system (MACRS); research equipment belongs to the 5-year MACRS class