A machine cost $800,000 on April 1, 2012. Its estimated salvage value is $80,000 and its expected life is eight years. Instructions Calculate the depreciation expense (to the nearest dollar) by each of the following methods, showing the figures used. (a) Straight-line for 2012 (b) Double-declining balance for 2013 (c) Sum-of-the-years'-digits for 2013