Exercise 17-10 Assigning overhead costs using the plantwide rate and departmental rate methods LO P1, P2 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 34,000 desk lamps produced annually follows. $255,000 Direct materials Direct labor Fabricating department (8,500 DLH * $30 per DLH) Assembly department (15,200 DLH * $26 per DLH) Machine hours Fabricating department Assembly department $255,000 $395,200 15,100 MH 20, 750 MH Expected overhead cost and related data for the two production departments follow. Direct labor hours Machine hours Overhead cost Fabricating 190,000 DLH 166,000 MH $410,000 Assembly 335,000 DLH 126,000 MH $430,000 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. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Required 4 Determine the plantwide overhead rate for Laval using direct labor hours as a base. Estimated overhead costs 1.60 per direct labor hour $ 840,000 $ 525,000 Estimated direct labor hours Required 1 Required 2 Required 1 Required 2 Required 3 Required 4 Determine the total manufacturing cost per unit for the aluminum desk lamp using the plantwide overhead rate. Direct materials $ 255,000 Direct Labor - Fabricating Direct Labor - Assembly Overhead 255,000 395,200 37,920 943,120 Total manufacturing costs Units produced Manufacturing cost per unit 34,000 $ 27.70 Required 1 Required 2 Required 3 Required 4 Compute departmental overhead rates based on machine hours in the fabricating department and direct labor hours in the assembly department. (Round your answers to 2 decimal places.) Departmental overhead rate MH Fabricating Assembly DLH Required 1 Required 2 Required 3 Required 4 Use departmental overhead rates from requirement 3 to determine the total manufacturing cost per unit for the aluminum desk lamps. Direct labor 0 Overhead 0 $ 0 0 per unit