5:17 Curtis Incorporated uses a job order cost system. Manufacturing overhead is applied on the basis of direct labor cost. Total manufacturing overhead was estimated to be $52,920 for the year; direct labor was estimated to total $151,200. Additional information for the year is as follows: Raw Materials Inventory Work in Process Inventory Finished Goods Inventory Raw materials purchases Direct materials used Direct labor Beginning Inventory (1/1) $ 10,200 23,900 Ending Inventory (12/31) $ 13,500 34,900 $ 119,000 108,900 147,900 Indirect materials used 6,800 Indirect labor 15,600 Factory equipment depreciation 25,700 Factory rent 18,400 Factory utilities 8,900 Other factory costs 8,300 18,700 39,500 Required: a. Calculate the predetermined overhead rate. b. Calculate cost of goods manufactured. c. Calculate the over- or underapplied overhead. d. Calculate adjusted cost of goods sold.