Radley Products has adopted an ABC costing system. The following manufacturing activities, indirect manufacturing costs, and cost drivers have been identified:

The Job Cost Record for Job #624 revealed that direct materials requisitioned for the job totaled $1,050. The Job Cost Record also showed that direct labor for this job totaled 10 hours at a wage rate of $25 per hour.
Other data collected on the resources used by Job #624 included:
1 machine setup required
5 machine hours
2 polishing cloths
2 quality control tests run
Requirements
1. Calculate the activity cost allocation rate for each of the five pools listed in the table.
2. Calculate the total cost of Job #624 (use an ABC costing system).
3. Why would ABC provide a more accurate allocation of manufacturing overhead (MOH) than a plant wide rate?
4. Assume that Radley Products used a traditional costing system rather than an ABC system. Its plant wide MOH rate would have been determined using direct labor (DL) hours as the allocation base. How much cost distortion would have occurred on this job?

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Total estimated MOH costs related to activity $ 120,000 Total estimated amount of allocation base activity 2,000 setups 6,000 machine hours 10,000 polishing cloths 4,000 tests run 50,000 DL hours Activity Machine setup Machining Polishing Quality control Facility-level costs Total manufacturing overhead (MOH) $1,050,000 $ 80,000 $ 280,000 $ 120.000 $1.650.000