4. A company commenced business on 1 May 2011, and purchased some sets of computers for its operations. The statement of financial position as at 31 December 2013 showed the following: Computers at cost Less: Accumulated depreciation Net book value $ 80,000 48,000 32,000 The company calculated depreciation charges using the straight-line method. Full year depreciation was provided in the year of acquisition and no depreciation was provided in the year of disposal. The company did not make any other purchase of computers in the last three years. the Required: (a) Assume the company changed the depreciation using the straight-line method to reducing-balance method and the depreciation rate was 40% per annum. the depreciation charges for the years 2011, 2012 and 2013. Recompute and the (b)(i) Continued from (a), calculate the differences on net profit in the years 2011, 2012 2013 after the change in depreciation method. (ii) State ONE situation in which the change in depreciation method does not violate consistency principle. (9 marks)