The information below relates to Derby Manufacturing Company's operations for a recent month. (Assume that all raw materials are direct materials.): Purchases of raw materials.......... $91,000 Direct labor cost.. $122.000 Selling costs (total)... $42,000 Administrative costs (total)................. $56,000 Manufacturing overhead costs (total)...... $340,000 Raw materials inventory, beginning...... $22,000 Work in process inventory, beginning...... $27,000 Finished goods inventory, beginning....... $42.000 Raw materials inventory, ending............. $7,000 Raw materials inventory, beginning......... $22,000 Work in process inventory, beginning...... $27.000 Finished goods inventory, beginning........ $42.000 Raw materials inventory, ending.......... $7,000 Work in process inventory, ending........... $35,000 Finished goods inventory, ending............ $15,000 What was Derby's cost of goods manufactured for the month? A) $545,000 B) $560,000 C) $568,000 D) $587,000