Exercise 2-11A (Algo) Mixed cost at different levels of activity LO 2-1 Perez Corporation paid one of its sales representatives $9,500 during the month of March. The rep is paid a base salary plus $13 per unit of product sold. During March, the rep sold 110 units. Required Calculate the total monthly cost of the sales representative's salary for each of the following months: Month Number of units Total variable cost April May June July 150 60 160 70 Total fixed cost Total salary cost $ 0 $ 0 $ 0 $ 0