Cullumber Bus Lines uses the units-of-activity method in depreciating its buses. One bus was purchased on January 1, 2025, at acost of $125.000. Over its 4 -vear useful life, the bus is expected to be driven 220.000 miles. Salvage value is expected to be $8.400. (a) Youranswer is correct. 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 2025,50,000;2026,65,000;2027,51,000; and 2028, 54,000 . (Round depreciation cost per unit to 3 decimal places, e.s. 0.125 and other answers to 0 decimal places, e.g. 125.) Prepare a depreciation schedule assuming actual mileage was 2025, 50,000; 2026, 65,000, 2027,51,000; and 2028, 54,000. (Round depreciation cost per unit to 3 decimal places, e.g, 0.125 and other answers to 0 decimal places, e-8. 125.)