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(13.4B) Compute abnormal spoilage; prepare a cost of production report when there is abnormal spoilage. (Objs. 2,3,4,5). The second department in the production process of Knowles Plastic Case Company is the Assembly Department. Data for the department for the month of November 2006 are shown below. Costs Beginning Work in Process Transferred In Costs From Prior Department 20,900 Materials Labor Overhead 14,000 7,688 10,000 Costs in Current Department 350,080 184,000 Materials Labor Overheacd Costs Transferred In From Prior Department 392,800 Quantities Beginning Work in Process Transferred In From Prior Department Transferred Out to Next Department Lost in Production-Normal Spoilage Lost in Production-Abnormal Spoilage Ending Work in Process 500 19,200 19,300 20 80 300 Stage of Completion of Work in Process Beginning Materials Labor and Overhead 100% 50% Ending 100% Materials Labor and Overhead The abnormal spoilage is discovered at the time of final inspection of the units as they leave the department and are transferred to the next department. It is therefore assumed that the units have been fully processed in the Assembly Department