Problem 3 On December 31st 2009, Rashed enterprises purchased equipment for 810,000 and was estimated to have a useful life of 18 years with no residual value. At the end of 2018, it was determined that the equipment is of lower quality and there was a change of estimates accordingly. New estimate will be used to calculate for 2019. From 2019, the useful life is now estimated to be 12 years with no residual value. (All figures are in AED) (5 Marks) Required: A. Compute the book value at the end of 2018 (1 mark) B. Compute the depreciation expenses for 2019 (1 mark) C. Show the journal record for 2019 (1 mark) D. Explain three things to consider in calculating depreciation (2 Marks)