Speedy Taxi Service uses the units-of-activity method in computing depreciation on its taxicabs. Each cab is expected to be driven 152,820 miles. Taxi no. 10 cost $34,504 and is expected to have a salvage value of $620. Taxi no. 10 is driven 33,230 miles in year 1 and 20,340 miles in year 2. Compute the depreciation for each year.