Question

"Blast it!" said David Wilson, president of Teledex Company. "We've just lost the bid on the Koopers job by $3,000. It seems we're either too high to get the job or too low to make any money on half the jobs we bid." Teledex Company manufactures products to customers' specifications and uses a job-order costing system. The company uses a plantwide predetermined overhead rate based on direct labor cost to apply its manufacturing overhead (assumed to be all fixed) to jobs. The following estimates were made at the beginning of the year: Department Fabricating Machining $406,000 $ 101,500 Assembly Total Plant 91,350 $ 355,250 $ 203,000 Manufacturing overhead 852,600 Direct labor 304,500 609,000 Jobs require varying amounts of work in the three departments. The Koopers job, for example, would have required manufacturing costs in the three departments as follows: Department Machining Fabricating $3,300 $3,400 Assembly $1,700 $6,500 Total Plant Direct materials $200 5,200 $10,400 $ 500 Direct labor Manufacturing overhead ?

Using the company's plantwide approach: a. Compute the plantwide predetermined rate for the current year. b. Determine the amount of manufacturing overhead cost that would have been applied to the Koopers job. 2. Suppose that instead of using a plantwide predetermined overhead rate, the company had used departmental predetermined overhead rates based on direct labor cost. Under these conditions: a.Compute the predetermined overhead rate for each department for the current year. b. Determine the amount of manufacturing overhead cost that would have been applied to the Koopers job. 4. Assume that it is customary in the industry to bid jobs at 150% of total manufacturing cost (direct materials, direct labor, and applied overhead). a.What was the company’s bid price on the Koopers job using a plantwide predetermined overhead rate? b.What would the bid price have been if departmental predetermined overhead rates had been used to apply overhead cost?

Answer 1

a.
Total Plant Manufacturing overhead = $852,600
Total Plant Direct Labor Cost = $609,000

Overhead rate = 852,600 X 609,000 = $1.4 per labor cost dollar

b.
Rate = $1.4
Total Labor Cost in Koopers job = $10,400
Overhead cost = 10,400 X 1.4 = $14,560

2.

		Fabricating	Machining	Assembly	Total
Manufacturing Overhead	A	$        3,55,250	$        4,06,000	$            91,350	$        8,52,600
Direct labor	B	$        2,03,000	$        1,01,500	$        3,04,500	$        6,09,000
Rate	A / B	$                1.75	$                4.00	$                0.30
		Fabricating	Machining	Assembly	Total
Direct Material		$              3,300	$                  200	$              1,700	$              5,200
Direct labor		$              3,400	$                  500	$              6,500	$            10,400
Overhead		$              5,950	$              2,000	$              1,950	$              9,900
		(1.75 X 3,400)	(4 X 500)	(0.3 X 6,500)	$            25,500

4.

		Fabricating	Machining	Assembly	Total
Direct Material		$            3,300	$          200	$          1,700	$        5,200
Direct labor		$            3,400	$          500	$          6,500	$     10,400
Overhead		$            4,760	$          700	$          9,100	$     14,560
		(1.4 X 3,400)	(1.4 X 500)	(1.4 X 6,500)	$     30,160
BID Price	30,160 X 1.5				$ 45,240.0

		Fabricating	Machining	Assembly	Total
Direct Material		$              3,300	$                  200	$              1,700	$              5,200
Direct labor		$              3,400	$                  500	$              6,500	$            10,400
Overhead		$              5,950	$              2,000	$              1,950	$              9,900
		(1.75 X 3,400)	(4 X 500)	(0.3 X 6,500)	$            25,500
BID Price	25,500 X 1.5				$        38,250.0