Speedy Taxi Service uses the units-of-activity method in computing depreciation on its taxicabs. Each cab is expected to be driven 151,350 miles. Taxi no. 10 cost $33,830 and is expected to have a salvage value of $430. Taxi no. 10 is driven 30,020 miles in year 1 and 20,630 miles in year 2. Compute the depreciation for each year.