Laval produces lamps and home lighting fixtures. Its most popular product is a brushed aluminum desk lamp. This lamp is made from components shaped in the fabricating department and assembled in the assembly department. Information related to the 35,000 desk lamps produced annually follows. $270,000 Direct materials Direct labor Fabricating department (9,000 DLR$25 per DIR) Assembly department (15,800 DLH $23 per DLR) Machine hours Yabricating department Assembly department $225,000 $363.400 14,500 ML 20, 450 ML Expected overhead cost and related data for the two production departments follow. Direct labor hours Machine hours Overhead cost Fabricating Assembly 130,000 LH 295,000 DLH 175,000 M 122.000 MM $340,000 $445,000 Required 1. Determine the plantwide overhead rate for Laval using direct labor hours as a base. 2. Determine the total manufacturing cost per unit for the aluminum 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. Use departmental overhead rates from requirement 3 to determine the total manufacturing cost per unit for the aluminum desk lamps