Mweene Plc is a manufacturer of a product used in the sports industry. The product is assembled from various parts and the production operatives are paid on a piece work basis. The piece work scheme to be applied to products in a week is as follows: 0 100 units K4/unit 101 200 units K4.8/unit 201 200 units K5.6/unit Over 300 units K6.4/unit It should be noted that only additional units qualify for the higher rates. The following output was achieved by three operatives during the week ending 31 st May, 2018. Operative Elude Sanks Joy Units Units Units Output 520 600 480 Required: (a) Calculate separately the earnings of each operative Elude, Sanks and Joy for the week ending 31 st May, 2018. (14 marks) (b) State two (2) advantages and two (2) disadvantages to an employer if they use a piece work scheme. (4 marks) (c) List any four causes of labour turnover (2 marks)