Calculate the following from the information given below: 3.1.1 Break-even quantity (3 marks) 3.1.2 Break-even value using the marginal income ratio (4 marks) 3.1.3 Margin of safety (in Rands) (3 marks) 3.1.4 Total Marginal Income and Net ProfitLoss if the sales price is reduced to R90 per unit. (4 marks) INFORMATION Dynamo Ltd manufactures calculators. The following information was extracted from the budget for the year ended 31 December 2023