The following data was related to the economy of Country A in 2018: $ (Millions) Factor income paid to other countries 1,560 Factor income received from other countries 150 Consumption 6,800 Subsidies 1,700 Indirect Taxes 2,600 Gross Investment 8,700 Profit 6,700 Direct Taxes 1,200 Interest 3,200 Net Investment 5,100 Rent 4,200 Wages and Salaries 5,400 (a) Define Gross Domestic Product. (b) Based on the above data of Country A, calculate the following items, list the terms with complete spelling in your calculation steps, and show your workings: (i) Net Domestic Product at factor cost by using Income Approach. (ii) Depreciation (iii) Gross Domestic Product at market price