Fitness Fanatics is a regional chain of health clubs. The managers of the clubs, who have authority to make investments as needed, are evaluated based largely on return on investment (ROI). The company's Springfield Club reported the following results for the past year: Sales $ 860,000 Net operating income $ 26,660 Average operating assets $ 100,000 The following questions are to be considered independently. 2. Assume that the manager of the club is able to increase sales by $86,000 and