Please help, everyone is giving me incorrect answers and work here. Please answer this if you know you can get 100%. Thank you.

REQUIRED (2 Marks) Use the information provided below to answer each of the following questions independently: 2.1 Calculate the break-even quantity 2.2 Calculate the sales value required to achieve a net profit of R150 000, using the marginal income ratio. 2.3 Determine the selling price per unit if a net profit of R624 600 is desired (4 Marks) (4 Marks) INFORMATION The following information was extracted from the budget of Mary's Manufacturers for the period July to December 2021: 2300 units R200 1. Total production and sales 2. Selling price per unit 3. Variable manufacturing costs per unit: Direct materials R60 Direct labour R40 Overheads R20 4. R200 000 Fixed manufacturing overheads Other costs: 5. Fixed marketing and administrative costs R100 000 Sales commission 10% of sales