An investor, Mr Matti, is trying to decide which of his two share investments he should close out. Mr Matti is close to retirement but still needs to earn about 20% of his required pension in order to live comfortably throughout his retirement. Information about the two companies is shown below. Copper Production Ltd Mahangu Production Ltd Share price at the beginning of the year N$20 N$15 Share price at the end of the year N$26 N$18 Dividends received during the year N$5 N$2 Average Co-efficient of variation over the last three years 0.480 0.251 Total number of shares owned by Mr Muffet 10 000 5 000 Required: (a) Calculate the return on investment per share for each of Mr Mattis investments. (4 marks) (b) Calculate the total return earned by Mr Matti during the year for his entire shareholding of each company. Show the realised and unrealised portion of this total return. (6 marks) (c) Explain how Mr Matti will use the co-efficient of variation in his investment decision. Your answer should include a definition of the term co-efficient of variation. (6 marks) (d) What share investment do you recommend Mr Matti closes out (in other words sells to realise his gains)? Justify your answer with reasons. (4 marks)