Exercise 6-38 (Static) Predetermined Overhead Rates (LO 6-2) Redfern Audio produces oudio equipment including headphones. At the Campus Facility, it produces two wireless models, Standard and Enhanced, which differ both in the materials and components used and in the labor skill required. Data for the Campus Plant for the third quarter follow. Required: Compute the predetermined overhead rate assuming that Rediem Audio uses direct labor-hours to allocate overhead costs