Chapter 2 Job-Order Costing for Manufacturing and Service Companies
159. Barnett Brass allocates overhead based on machine hours. Estimated overhead costs for the
year total $420,000 and the company estimates that it will use 42,000 machine hours during
the year. Barnett Brass used 41,600 machine hours during the year and incurred $424,320 of
overhead.
a. What is the overhead application rate for the year?
b. What is the amount of applied overhead for the year?
c. What is the amount of under or overapplied overhead for the year? Label as over or
underapplied.
d. Why does the result you obtained in part c above differ from the actual overhead cost?
Answer
160. Ponder Plumbing uses job-order costing for each of its installations and repairs. Overhead is
allocated based on the cost of plumber wages. At the start of the year, annual plumber wages
were estimated to be $275,000 based on 17,600 labor hours, and company overhead was
estimated to be $440,000.
a. Briefly state why the use of a predetermined overhead rate would be preferred to
assigning actual overhead to repair jobs.
b. Suppose a job required parts costing $180 and plumber time costing $1,800. How
much will be the total cost of the job?
Answer
161. Rooftop Solar estimated the following annual costs:
Expected annual direct labor hours 12,000
Expected annual direct labor cost $198,000
Expected machine hours 10,400
Expected material cost for the year $65,000
Expected manufacturing overhead $218,400
Job 612 used $350 of direct materials, 26 direct labor hours, and 14 machine hours. Actual
labor cost is $17 per hour.
a. If Rooftop Solar allocates overhead based upon machine hours, how much is the
overhead rate?
b. Determine the cost of job 612.