Exercise 4-9 (Algo) Allocating overhead using plantwide rate and departmental rates LO P1, P2 Laval produces lighting fixtures. Budgeted information for its two production departments follows. The departments use machine hours (MH) and direct labor hours (DLH). Fabricating Overhead cost $ 1,656,000 Direct labor hours Machine hours 510,000 DLH 92,000 MH Assembly $ 512,000 32,000 DLH 74,500 MH Laval reports the following for one of its products, a desk lamp. Fabricating Department Assembly Department Number of Direct Labor Hours per Machine Hours per Direct Labor Hours per Machine Hours per Unit Units Desk lamp 4,000 Required: Unit 4 DLH per unit Unit 2 MH per unit Unit 1 DLH per unit 0.6 MH per unit 1. Determine the plantwide overhead rate using 542.000 direct labor hours as the allocation base. 2. Determine the overhead cost per unit for the desk lamp using the plantwide overhead rate. 3. Compute departmental overhead rates based on machine hours in the Fabricating department and direct labor hours in the Assembly department 4. Determine the overhead cost per unit for the desk lamp using the departmental overhead rates.