Monty Bus Lines uses the units-of-activity method in depreciating its buses. One bus was purchased on January 1, 2020, at a cost of $233,839. Over its 5-year useful life, the bus is expected to be driven 139,900 miles. Salvage value is expected to be $8,600. (a) Compute the depreciable cost per unit. (Round answer to 2 decimal places, eg. 0.50.) Depreciation cost per unit I per mile Prepare a depreciation schedule assuming actual mileage was: 2020, 34,900; 2021, 28,000; 2022, 40,000; and 2023, 37,000. (Round cost per unit to 2 decimal places, eg. 15.25 and all other answers to 0 decimal places, e.g. 5,275.) Units of Year Activity 2020 2021 2022 2023 Computation Depreciation Cost/Unit Annual Depreciation Accumu Expense Depreci Depreciation Cost/Unit Annual Depreciation Expense Accumulated Depreciation End of Year Book Value