Cost of materials purchases on account $ 68,000 cost of materials requisitioned (includes $4,500 of indirect) 51,000 direct labor costs incurred 77,000 manufacturing overhead costs incurred, including indirect materials 97,500 cost of goods manufactured 223,000 cost of goods sold 151,000 beginning raw materials inventory 14,500 beginning work in process inventory 29,700 beginning finished goods inventory 32,800 predetermined manufacturing overhead rate (as % of direct labor cost) 130% what is the balance in work in process inventory at the end of the year?