PSB8.7 Calculate depreciation under different methods. LO4 In recent years Winter Ltd has purchased three machines. Because of frequent employee turnover in the accounting department, a different accountant was in charge of selecting the depreciation method for each machine, and various methods have been used. Information concerning the machines is summarised in the table below. Residual Useful life (in years) Machine Acquired Cost value 1 1 Jan. 2015 $135 000 $26 250 10 Depreciation method Straight-line Diminishing- balance 2 1 Jan. 2016 96 000 22 500 8 3 1 Jan. 2016 65 000 15 000 5 Units-of- production *Using 1 times the straight-line rate For the units-of-production method, total machine hours are expected to be 10 000. Actual hours of use in the first 3 years were: 2016, 1000; 2017, 3000; and 2018, 4000. Required a. Calculate the amount of accumulated depreciation on each machine at 31 December 2018. b. For Machine 3 in 2018, which depreciation method is the preferred method for tax purposes? Explain why. c. If you are the manager of Winter Ltd and your bonus is linked to profit of the company, which depreciation method do you prefer for Machine 3 in 2018? Explain why in point form