A high speed multiple bit drill press costing 720,000 has an estimated salvage value of $60,000 and a life of ten years. What is the annual depreciation for each of the first two full years under the following depreciation methods? 1. Double-declining-balance method a) year one, $ b) year two, $ 2. Units of production (activity) method (lifetime output is estimated at 110,000 unit; the press produced 12,000 units in year one and 18,000 in year two) a) year one, b) year two, 3. Sum of the years' digits method: a) year one b) year two 4. Straight line depreciation method: a) year one b) year two