WATERWAYS CONTINUING PROBLEM
(This is a continuation of the Waterways Problem from Chapter 19)
WCP20 Waterways has two major public-park projects to provide with comprehensive irrigation in one of
its service locations this month. Job J57 and Job K52 involve 15 acres of landscaped terrain which will
require special-order sprinkler heads to meet the specifications of the project. Using a job cost system to
produce these parts, the following events occurred during December.
Raw materials were requisitioned from the company’s inventory on December 2 for $5,202; on
December 8 for $1,200; and on December 14 for $3,600. In each instance, two-thirds (2/3) of these
materials were for J57 and the rest for K52.
Six time tickets were turned in for these two projects for a total amount of 18 hours of work. All the
workers were paid $16.50 per hour. The time tickets were dated December 3, December 9, and December
15. On each of those days, 6 labor hours were spent on these jobs, two-thirds (2/3) for J57 and the rest for
K52.
The predetermined overhead rate is based on machine hours. The expected machine hour use for the
year is 2,112 hours, and the anticipated overhead costs are $840,576 for the year. The machines were used
by workers on projects K52 and J57 on December 3, 9, and 15. Six machine hours were used for project
K52 (2 each day), and 8.5 machine hours were used for project J57 (2.5 the first day and 3 each of the other
days). Both of these special orders were completed on December 15, producing 244 sprinkler heads for J57
and 142 sprinkler heads for K52.
Additional job order activities during this period of time included:
Dec. 1 Purchased raw materials from Durbin Supply Company on account for $50,320.
Dec. 2 Issued $40,000 of direct materials from the company’s inventory to jobs other than K52 and J57
and $3,000 of indirect materials.
Dec. 12 Incurred Waterways’ factory salaries and wages in the amount of $64,000.
Dec. 13 Paid the factory’s water bill of $9,000.
Dec. 18 Transferred $49,000 of costs from other completed jobs to finished goods.
Dec. 21 Paid the factory’s electric bill of $12,000 for Waterways’ factory.
Dec. 31 Made adjusting entries for the factory that included accrued property taxes of $12,000, prepaid
insurance of $8,000, and accumulated depreciation of $16,800.
Instructions
(a) Set up the job cost sheets for Job No. J57 and Job No. K52. Determine the total cost for each
manufacturing special order for these jobs. (Round unit cost to nearest cent.)
(b) Journalize the activities from these job cost sheets in the general journal. Also journalize the other
costs that occurred during this period of time.
(c) Assuming that Manufacturing Overhead has a debit balance of $3,500, determine whether overhead
has been under/over applied and make the adjusting entry.
(d) Why would Waterways choose machine hours as the cost driver for the overhead rather than direct
labor cost? What would Waterways be likely to choose as the cost driver for the overhead for the job
of installing the irrigation system and why?