Answer:
departmental rate
Explanation:
From the question we are informed about Some firms which pool overhead into a single plantwide overhead pool, while others accumulate overhead costs into manufacturing departments, each of which has an overhead cost pool and overhead cost application rate. In this case, the approach likely to provide more accurate cost numbers for cost estimating, pricing, and performance evaluation is departmental overhead rate.
The departmental overhead rate can be regarded as expense rate that is been calculated in production process of a factory for each of the departments. It varies at stages of the production process
