The Tree Line Inn has purchased a shuttle bus to transport guests to and from a local ski lodge. The cost of the bus is $40,000; its salvage value is $4,000; and its life is five years with expected usable mileage of 100,000.

REQUIRED

Calculate depreciation and net book value for years 1-5 for all methods. For units of production assume 15,000 in year 1, 20,000 miles in year 2, 25,000 in year 3, 25,000 in year 4 and 20,000 in year 5.:

1. Straight-Line
2. Units of production
3. Sum-of-the-years digits
4. Double declining balance