REQUIRED Use the information provided below to answer the following questions independently: 3.1 Calculate the margin of safety (expressed in units). (4 marks) 3.2 Use the marginal income ratio to determine the break-even value if the direct manufacturing costs are R10 per unit more than expected. (4 marks) 3.3 Calculate the total Marginal Income and Net Profithoss if the sales volume for 2023 is 20% below the budgeted quantity. (4 marks) 3.4 Calculate the number of units that must be sold to earn a net profit of R150 per unit. (4 marks) 3.5 Calculate the break-even quantity if the selling price is reduced by R50 per unit and the fixed manufacturing costs decrease by R22 000 . (4 marks) INFORMATION The Salmon Ltd manufactures and sells fishing rods for R600 each. The budgeted sales for 2023 are 22000 rods and the costs are expected to be as follows