Perrette Motor Company rebuilds automobile engines that have been damaged or are in need of extensive repair. The rebuilt engine has a 100,000-mile warranty and is purchased by auto shops, large motor pools in companies and governmental units, and some individual auto owners. The plant in Dayton, Ohio, specializes in the Ford V6 engine. Approximately 960 to 1,160 engines are rebuilt each month, and the costs of the plant are assigned to monthly production using weighted-average process costing. The current month began with a Work-in-Process Inventory of 340 engines, which were 50% complete for direct materials and 50% complete for conversion costs. The direct materials cost in beginning Work-in-Process was $129,600, while the conversion cost was $128,640. A total of 860 engines were completed and shipped out during the month, and total direct materials cost of $928,800 and conversion cost of $1,032,000 were incurred during the month. The ending Work-in-Process of 440 units was 50% complete for direct materials and 30% complete for conversion costs.