A company offers ID theft protection using leads obtained from client banks. There are 4 employees that work 40 hours per week on leads at a pay rate of $22 per hour per employee. Each employee identifies an average of 4000 potential leads a week from a list of 5000. An average of 4 percent actually sign up for the service, paying a one-time fee of $70. Material and overhead cost is $6000 per week. Calculate the multifactor productivity for this operation in fees generated per dollar of input.