29. Mario's Manufacturing Co, uses a job cost accounting system. On June 1, the company has 50 in its Work in Process (WIP) Inventory account. Mario works on three Jobs daring the month of June (545-547). Jobs 545 and 546 completed on June 29. During the month of June, a summary of production data shows the following For Direct Materials Cost Direct Labor Cost Factory Overhead Cost Job 545 Job 546 $12,000 11,000 Job 547 8,000 $9,000 5,200 5,000 $4,680 7777 ???? Mario applies estimated factory overhead cost to jobs using a single predetermined factory overhead (FO) rate based on direct labor cost. (Note: Find the predetermined FO rate and use it to calculate applied FO cost for jobs 546 and 547). Instructions: (a) Complete journal entries to record the 1) cost of direct materials used, 2) cost of direct labor and 546. Use the following accounts for your journal entries: WIP Inventory, Raw Materials used, 3) the application of factory overhead cost to jobs, and 4) the completion of Jobs 545 Inventory, Wages Payable, Factory Overhead, and Finished Goods Inventory. 1) Dr Cr 2) Dr Dr 3) Dr R R (b) Calculate the ending balance of the Work in Process Inventory account on June 30. Please indicate "debit" or "credit" with your answer.