Whippet Bus Lines uses the units-of-activity method in depreciating its buses. One bus was purchased on January 1, 2017, at a cost of exist147,000. Over its 4-year useful life, the bus is expected to be driven 240,000 miles. Salvage value is expected to be exist7, 800. Compute the depreciation cost per unit. (Round answer to 3 decimal places, e.g. 6.251) Depreciation cost per unit Prepare a depreciation schedule assuming actual mileage was: 2017, 58, 800: 2018, 76, 440: 2019, 60, 270: and 2020, 39, 690. (Round depreciation cost per unit to 3 decimal places, e.g. 0.125 and other answers to o decimal places, e.g.125)