Answer:
Harbor Wheel Company
Overhead applied to a single Ultimate wheel using traditional costing:
= $228
Overhead applied to a single Standard wheel using traditional costing:
= $190
Total manufacturing cost of the Standard wheel using traditional costing:
= $710,000 ($710 * 10,000)
Activity-based overhead rate for Quality Control:
= $25
Machining overhead applied to the Standard wheel using activity-based costing:
= $1,000,000
Total manufacturing overhead applied to each Ultimate wheel using activity-based costing:
= $161.40
Explanation:
a) Data and Calculations:
Total estimated overhead = $7,600,000
Estimated total direct labor hours = 200,000
Predetermined overhead rate = $38 per direct labor hour ($7,600,000/200,000)
Current Traditional Costing:
Ultimate Standard
Selling price per unit $1,600 $1,300
Direct materials per wheel $700 $420
Direct labor cost per wheel $120 $100
Overhead applied per wheel $228 $190
Total cost per wheel $1,048 $710
Direct labor hours per wheel 6 5
Total units produced 25,000 10,000
Overhead to a single wheel $228 (6* $38) $190 (5 * $38)
Activity-Based Costing:
Activity Cost Cost Estimated Expected Use of Cost Drivers
Pools Drivers Overhead Total Ultimate Standard
Purchasing purchase orders $1,200,000 40,000 17,000 23,000
Machine setups machine setups 900,000 18,000 5,000 13,000
Machining machine hours 4,800,000 120,000 75,000 45,000
Quality Control inspections 700,000 28,000 11,000 17,000
Total $7,600,000
Activity-based overhead rates
Purchasing = $30 ($1,200,000/40,000)
Machine setups = $50 ($900,000/18,000)
Machining = $40 ($4,800,000/120,000)
Quality control = $25 ($700,000/28,000)
Machining overhead applied to the Standard wheel using activity-based costing = $1,000,000 ($40 * 45,000)
Total manufacturing overhead applied to each Ultimate wheel using activity-based costing:
Purchasing = $510,000 ($30 * 17,000)
Machine setups = $250,000 ($50 * 5,000)
Machining = $3,000,000 ($40 * 75,000)
Quality control = $275,000 ($25 * 11,000)
Total overhead = $4,035,000
Total units = 25,000
Overhead cost per wheel = $161.40 ($4,035,000/25,000)
