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You are given the following data on possible states of a closed economy (figures in E millions): National Planned Planned Government Income Consumption Investment Expenditure 400 280 120 60 500 350 120 60 600 420 120 60 700 490 120 60 800 560 120 60 (i) Calculate the value of planned savings at the equilibrium level of national income. [2] (ii) Calculate the value of unplanned additions (+) or falls (-) in stocks if national income is $750 million. [4] (iii) Calculate the equilibrium level of national income if planned investment rises from $120 million to 150 million. [4]