Garvey's Fine Furnishings manufactures upscale custom furniture. currently uses a plantwide overhead rate based on direct labor hours to allocate its of manufacturing overhead to individual jobs. However, , owner and CEO, is considering refining the company's costing system by using departmental overhead rates. Currently, the Machining Department incurs of manufacturing overhead while the Finishing Department incurs of manufacturing overhead. has identified machine hours (MH) as the primary manufacturing overhead cost driver in the Machining Department and direct labor (DL) hours as the primary cost driver in the Finishing Department. Requirement 1. Compute the plantwide overhead rate assuming that Garvey's expects to incur 30,000 total DL hours during the year First identify the formula, then compute the rate.
Total manufacturing overhead / Cost allocation base = Plantwide overhead
(estimated) rate
$1,290,000 / 30,000 = 43
Requirement 2. Compute departmental overhead rates assuming that Garvey's expects to incur 14,500 MH in the Machining Department and 17,500 DL hours in the Finishing Department during the year. First identify the formula, then compute the rate for each department.
Total department / Cost allocation base = Departmental
overhead (estimated) overhead rate
Machining 870,000 / 14,500 = 60 per mach hour
Finishing 420,000 / 17,500 = 24 per DL hour
Requirement 3. If Garvey's continues to use the plantwide overhead rate, how much manufacturing overhead would be allocated to Job 450 and Job 455? Identify th formula, then calculate the amount of manufacturing overhead that would be allocated to the jobs if the plantwide overhead rate is used.
Actual use of Manufacturing overhead
Plantwide overhead rate x allocation base = allocated
Job 450 43 x 5 = 215
Job 455 43 x 5 = 215
Requirement 4. Based on your answers to Requirements 2 and 3, does the plantwide overhead rate overcost or undercost either job? Explain. If Garvey's sells its furniture at 125% of cost, will its choice of allocation systems affect product pricing? Explain.
The single plantwide rate undercosts Job 450 by $1 and undercosts Job 455 by $216.