LV2-a Company has used a two-stage, reciprocal method cost allocation system for many years. In the first stage, overhead costs from its two service departments (repair and administration) are allocated to its two production departments (molding and assembly) based on the following activity levels: repair - repair hours  administration - # of employees In the second stage, LV2-a calculates pre-determined overhead rates in the production departments using the following activity levels: molding - machine hours assembly - direct labor hours The following information is available for the four departments:  Repair Admin Directly traced overhead $160,000 $135,000 Repair hours 20,000 14,000 Number of employees 30 15  Molding Assembly Directly traced overhead $234,000 $178,000 Repair hours 4,000 2,000 Number of employees 24 6 Direct labor hours 12,000 20,000 Machine hours 40,000 5,000 Calculate the pre-determined overhead rate used in the assembly department.