A company offers ID theft protection using leads obtained from client banks. Three employees work 40 hours a week on the leads, at a pay rate of $ 25 per hour per employee. Each employee identifies an average of 3,000 potential leads a week from a list of 5,000. An average of 4 percent actually sign up for the service, paying a one-time fee of $ 70. Material costs are $ 1,000 per week, and overhead costs are $ 9,000 per week. Calculate the multifactor productivity for this operation in fees generated per dollar of input.