Feng Company installs a computerized manufacturing machine in its factory on 01/01 at a cost of $42,300. The machine's useful life is estimated at 10 years. or 363,000 units of product, with a $6,000 salvage value. During its second year, the machine produces 35,000 units of product. Determine the machine's second-year depreciation under the following methods: 1- straight line 2- units of production 3-double-declining balance.