4. Consider the first cost of an asset is RM600,000, salvage value at the end of its life is RM 0, 3 years recovery period and 4 years of life. Annual income by the asset is RM300,000 with the operation cost is RM50,000 per year. The depreciation schedule is straight line with half-year convention and effective tax rate is 30%. Perform before-tax and after-tax analysis. (10 marks)