Curtis Inc. uses a job order costing system. Manufacturing overhead is applied on the basis of direct labor cost. Total manufacturing overhead was estimated to be $30,040 for the year; direct labor was estimated to total $150,200. Raw Materials Inventory (1/1) $ 11,600 Work in Process Inventory Finished Goods Inventory (12/31) $12,900 $ 22,400 $ 17,200 $ 34,600 $39,500 The following transactions have occurred during the year. Raw materials purchases Direct materials used Direct labor Indirect materials used Indirect labor $103,000 $ 95,200 $ $145,300 6,500 $ 15,600 Factory rent Factory equipment depreciation $ 24,600 $ 18,700 $ 8,200 $ 7,600 Factory utilities Other factory costs (a) Calculate the predetermined overhead rate. Predetermined Overhead Rate (b) Calculate cost of goods manufactured. Cost of Goods Manufactured %