Computer equipment was acquired at the beginning of the year at a cost of $74,800 that has an estimated residual value of $4,500 and an estimated useful life of 5 years. a. Determine the depreciable cost. b. Determine the straight-line rate % c. Determine the annual straight-line depreciation A machine costing $91,875 with a 5-year life and $5,500 residual value was purchased January 2. Compute depreciation for each of the five years, usin the double-declining balance method. Year Depreciation Year 1 Year 2 Year 3 Year 4 Year 5