Assume a piece of equipment was purchased July 26, 2016, at a cost of $54,620. The estimated residual value is $4,700 with a useful life of 4 years. Assume a production life of 53,000 units. a. Compute the depreciation for years 2016 and 2017 using straight-line. (Do not round intermediate calculations.) Depreciation expense 2016 2017 b. Compute the depreciaion for years 2016 and 2017 using units-of-production (in 2016, 4,300 units were produced and in 2017, 17,300 units were produced). (Do not round intermediate calculations. Round your answers to the nearest cent.) Depreciation expense 2016 2017