Single Plantwide and Multiple Production Department Factory Overhead Rate Methods and Product Cost Distortion The management of Nova Industries Inc. manufactures gasoline and diesel engines through two production departments, Fabrication and Assembly. Management needs accurate product cost information in order to guide product strategy. Presently, the company uses a single plantwide factory overhead rate for allocating factory overhead to the two products. However, management is considering the multiple production department factory overhead rate method. The following factory overhead was budget for Nova: irect Iapor nours were estimaced as rollows: a. Determine the per-unit factory overhead allocated to the gasoline and diesel engines under the single plantwide factory overhead rate method, using direct labor hours a the activity base. Gasoline engine $ per unit Diesel engine $ per unit b. Determine the per-unit factory overhead allocated to the gasoline and diesel engines under the multiple production department factory overhead rate method direct labor hours as the activity base for each department. Gasoline engine $ per unit Diesel engine $ per unit