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 $20 per hour per employee. Each employee identifies an average of 3,700 potential leads a week from a list of 5,000. An average of 5 percent of potential leads actually sign up for the service, paying a one-time fee of $55. Material costs are $1,200 per week, and overhead costs are $11,000 per week.

Calculate the multifactor productivity for this operation in fees generated per dollar of input.