Sales commissions are $6,000 when 1,500 units are sold and $12,000 when 3,000 units are sold. Using the high-low method, what is the variable portion of sales salaries and commissions?

Hello tutor provide answer this financial accounting question

Maxwell Corp., which began business at the start of the current year, had the following data: The company planned and actually produced 50,000 units. It sold 47,000 units at a price of $18 per unit. The production costs included a variable cost of $6 per unit and total fixed costs of $300,000. Selling and administrative costs consisted of a variable cost of $2 per unit and fixed costs of $40,000. What is the gross margin that the company would disclose on an absorption-costing income statement?