Arbon Company has three service departments and two operating departments. Selected data concerning the five departments are presented below: Service Departments Operating Departments Prep Equipment Administrative Janitorial Maintenance $ 88,000 $67,800 $36,000 80 60 240 $256, 100 600 Finishing $498,600 300 Costs Number of employees Square metres of space occupied Machine-hours Total $946,500 1,280 11,500 60,000 300 1,200 1,000 2,000 7,000 42,000 18,000 The company allocates service department costs by the step-down method in the following order: Administrative (number of employees), Janitorial (space occupied), and Equipment Maintenance ( machine- hours) Required: Using the step-down method, allocate the service department costs to the operating departments. (Negative amounts should be indicated by a minus sign.) Service Departments Administrative Janitorial Maintenance Operating Departments Prep Finishing Total Departmental costs before allocations Allocations: Administrative Janitorial Maintenance Total costs after allocation $ 0 $ 0 $ 0 $ 0 $ 0