Yellow Bus Lines uses the units of activity method in depreciating its buses. One bus was purchased on January 1, 2017, it a cost of $255, 055. Over its 4-year useful life, the bus is expected to be driven 169, 900 miles. Salvage value is expected to be $8, 700. Compute the depreciable cost per unit. Prepare a depreciation schedule assuming actual mileage was! 2017, 51.900; 2018, 56,000; 2019, 36,000, and 2020, 26,000