whats the formula for this

Frederick Company has two service departments (Cafeteria Services & Maintenance).Frederick has two production departments (Assembly Department & Packaging Department.)Frederick uses a step allocation method where Cafeteria Services is allocated to all departments and Maintenance Services is allocated to the production departments.All allocations are based on total employees.Cafeteria Services has costs of $150,000 andMaintenancehas costs of $285,000 before any allocations.What amount of Maintenance total cost is allocated to the Packaging Department?

cafe # employee

maint # employee

assembly # employee

package # employee