Williams Ltd manufactures and sells a single product. The selling price is R18. The following information relates to its yearly production and cost data. (Assume that there is no change to the stock level of the company.) Unit Total Year Volume Cost R 1 300 000 4 000 000 2 150 000 2 800 000 3 420 000 6 600 000 4 280 000 3 900 000 5 230 000 3 200 000 6 120 000 2 100 000 Required: 1. Based on the above cost and volume data, use the highlow method to identify variable cost per unit and annual fixed costs for the company. 5 marks 2. On the basis of your answers in part (1) above, calculate the breakeven point of the company in both units and sales revenue.