Gleason purchased a used van for use in its business on January 1, 2020. It paid $9,000 for the van. Gleason expects the van to have a useful life of four years, with an estimated residual value of $600. Gleason expects to drive the van 30,000miles during 2020,20,000 miles during 2021, 15,000 miles in 2022, and 5,000 miles in 2023, for total expected miles of 70,000 . Read the requirements. (Complete all input fields. Enter a "0" for any zero values. Use three decimal places for the depreciation cost per mile.) Requirements Using the units-of-production method of depreciation (with miles as the production unit), calculate the following amounts for the van for each of the four years of its expected lie (do not round here; use three decimal places for the depreciation cost per mile) a. Depreciation expense b. Accumulated depreciation balance c. Book value