EA10. LO 6.3 Custom's has three cost pools and an associated cost driver to allocate the costs to the product. The cost pools, cost driver, estimated overhead, and estimated activity for the cost pool are: OpenStax Principles of Accounting, Volume 2: Managerial Accounting Chapter 6: Activity-Based, Variable, and Absorption Costing Page 3 of 4 What is the predetermined overhead rate for each activity? Solution Material cost pool: Machining cost pool: Inspection cost pool