The Blue Tide Company manufactures lightbulbs in a single process. The following information is available: Work in process inventory, Jan. 1 0 units Units started in production 14,000 units Units completed and transferred out 9,000 units Work in process inventory, Dec. 31 5,000 units Production costs: Direct materials $38,500 Direct labor $13,975 Manufacturing overhead $8,600 The units still in process are 90 percent complete with respect to direct materials and 40 percent complete with respect to conversion costs.