University Printers has two service departments (Maintenance and Personnel) and two operating departments (Printing and Developing). Management has decided to allocate maintenance costs on the basis of machine-hours in each department and personnel costs on the basis of labor-hours worked by the employees in each. The following data appear in the company records for the current period: Maintenance Personnel Printing Developing Machine-hours 1,000 1,000 3,000 Labor-hours 500 500 2,000 Department direct costs $ 13,000 $ 36,000 $ 43,850 $ 31,500 University Printers estimates that the variable costs in the Personnel Department total $17,250 and in the Maintenance Department variable costs total $7,700. Avoidable fixed costs in the Personnel Department are $5,700. Required: If University Printers outsources the Personnel Department functions, what is the maximum it can pay an outside vendor without increasing total costs? (Do not round intermediate calculations.)