Walton Corporation sells a single product at a selling price of 550 per unit. Variable expenses are $28 per unit and fixed expenses are $104,500. The company's tax rate is 20%. A. What is the contribution margin per unit? B. What is Walton's breakeven point in units? C. What is Walton's breakeven point in sales dollars? Do not use dollar sign. . How many units does Walton need to sell to achieve a $40,000 before tax profit? How many units does Walton need to sell to achieve a $40,000 after tax profit