The following information pertains to Langley Company's operations for the first quarter of 2022: Units Production Sales 70 000 60 000 Expected activity level 65 000 R74.50 R34.50 R16.50 R7.80 Unit selling price Direct material Direct labour Variable manufacturing overhead Fixed manufacturing overhead Variable selling and administration cost Fixed selling and administration cost R195 000 R5.70 R42 800 Required: 3.1 Prepare a contribution margin income statement for the financial year end 31 December 2022, when 260 000 units were produced and sold. (6) 3.2 Calculate each of the following for 2022 if 260 000 units were produced and sold: a. Degree of operating leverage (round to 4 decimal places) (2) b. Annual Break-even units (2) C. Annual Break-even sales (round off to the nearest rand) (2) d. Annual margin of safety in units (1) e. Annual margin of safety percentage (1)