On October 1, 2016, the Allegheny Corporation purchased machinery for $278,000. The estimated service life of the machinery is 10 years and the estimated residual value is $3,000. The machine is expected to produce 550,000 units during its life. Required: Calculate depreciation for 2016 and 2017 using each of the following methods. Partial-year depreciation is calculated based on the number of months the asset is in service. (Do not round intermediate calculations.) 1. Straight line. Straight Line Depreciation I Choose Denominator Annual Depreciation Choose Numerator Depreciation Year Annual Depreciation x Fraction of Year Expense 2016 2017 2. Sum-of-the-years' digits. Sum-of-the-years' digits depreciation Depreciable x Rate per Fraction Depreciation of Year Expense Base Year X 10/1/2016 through 12/31/2016 Total depreciation expense -2016 X x 1/1/2017 through 9/30/2017 x 10/1/2017 through 12/31/2017 Total depreciation expense 2017