Exercise 11-9A (Algo) Mixed cost at different levels of activity LO 11-1, 11-2 Walton Corporation paid one of its sales representatives $10,000 during the month of March. The rep is paid a base salary plus 53 per unit of product sold During March, the rep sold 100 units Required Calculate the total monthly cost of the sales representative's salary for each of the following months April May July June 150 140 50 60 Month Number of units sold Total variable cost Total fixed cost S 0 $ 0$ 0$ 0 Total salary cost