Compute depreciation under units-of-activity method. E9.5 (LO 2), AP Yello Bus Lines uses the units- of-activity method in depreciating its buses. One bus was purchased on January 1, 2022, at a cost of $148,000. Over its 4-year useful life, the bus is expected to be driven 100,000 miles. Salvage value is expected to be $8,000. Instructions a. Compute the depreciable cost per unit. b. Prepare a depreciation schedule assuming actual mileage was: 2022, 26,000; 2023, 32,000; 2024, 25,000; and 2025, 17,000