17. Calculate depreciation A machine which cost $300,000 is acquired on October 1, 2014. Its estimated salvage value is $30,000 and its expected life is eight years. Instructions (1) Calculate depreciation expense for 2014 and 2015 by each of the following methods, showing the figures used. (a) Double-declining balance (b) Sum-of-the-years'-digits (2) At the end of 2015, which method results in the larger accumulated depreciation amo