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 $146,000. Over its 4-year useful life, the bus is expected to be driven 246,250 miles. Salvage value is expected to be $8,100. 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, 58,400; 2018, 75,920; 2019, 59,860; and 2020, 39,420. (Round depreciation cost per unit to 3 decimal places, e.g. 0.125 and other answers to 0 decimal places, e.g. 125) Computation End of Year Years Units of Activity Depreciation Cost/Unit = Annual Depreciation Expense Accumulated Depreciation Book Value 2017 $ $ $ $ 2018 2019 2020