Chapter 4 also discusses an adjusted allocation rate approach that results in the same
ending balances as in alternative (c). This approach operates via a restatement of the indirect
costs allocated to all the individual jobs worked on during the year using the actual indirect cost
rate.
4-40 Normal costing, overhead allocation, working backward. Gardi Manufacturing uses
normal costing for its job-costing system, which has two direct-cost categories (direct materials
and direct manufacturing labor) and one indirect-cost category (manufacturing overhead). The
following information is obtained for 2017:
Total manufacturing costs, $8,300,000
Manufacturing overhead allocated, $4,100,000 (allocated at a rate of 250% of direct
manufacturing labor costs)
Work-in-process inventory on January 1, 2017, $420,000
Cost of finished goods manufactured, $8,100,000
Required:
1. Use information in the first two bullet points to calculate (a) direct manufacturing labor costs
in 2017 and (b) cost of direct materials used in 2017.
2. Calculate the ending work-in-process inventory on December 31, 2017.
SOLUTION
(15 min.) Normal costing, overhead allocation, working backward.
1a. Manufacturing overhead allocated = 250% × Direct manufacturing labor costs
b.
=
Cost of direct
materials used
+
Direct manufacturing
labor cost
+
Manufacturing
overhead allocated