Calculate the total commission for the following commission payment plan. (8 marks) 1% on the first RM90, 000 of sales 2% on sales between RM90, 000 to RM180,000 3% on sales above RM180, 000 Sales: RM250,000 2. a. Differentiate between gross salary and net salary. (4 marks) b. The basic salary for Siti is RM920 per month. In the month of December, the commission made by Siti was RM650. The percentage of EPF is 11% and SOSCO is 0.45%. What is Siti Gross Salary and Net Salary? (6 marks) Compute the trade discount and net price. (3 marks) List Unit of Discount rate price purchase per unit RM 60% 8,889 Compute the trade discount and net price. (3 marks) List price Goods Discount return rate RM8, 760 RM750 10%