Mackey purchased a used van for use in its business on January 1, 2017 It paid $16,000 for the van Mackey expects the van to have a useful life of four years, with an estimated residual value of $1,300. Mackey expects to drive the van 18,000 miles during 2017, 30,000 miles during 2018, 8,000 miles in 2019, and 49,000 miles in 2020, for total expected miles of 105,000 Read the requirements (Complete all answer boxes. Enter a "O" for any zero values. Use three decimal places for the depreciation cost per mile.) Units of production method Annual Depreciation Expense Accumulated Depreciation Year Book Value Start 2017 2018 2019 2020