One of the companies related to a Canadian bank offers a protection service. Three employees work 40 hours a week, at a pay rate of $20 per hour per employee. Each employee identifies an average of 3500 clients a week. An average of 5 percent actually sign up for the service, paying a fee of $60. Material costs are $1000 per week, and overhead costs are $10000 per week. Calculate the multi-factor productivity for this operation in fees generated per dollar of input