Whitlock Manufacturing uses a job costing accounting system for its production costs. The company uses a predetermined overhead rate based on direct materials costs to apply overhead to individual jobs. The company prepared an estimate of overhead costs at different volumes for the current year as follows: Direct materials costs $ 321,000 $ 412,600 $ 521,000 Variable overhead costs $ 462,240 $ 606,240 $ 750,240 Fixed overhead costs 384,000 384,000 384,000 Total overhead $ 846,240 $ 990,240 $ 1,134,240 Whitlock expects to spend $412,600 in direct materials costs over the entire year. The following information is for May, when Jobs WM-52 and WM-53 were completed: Inventories, May 1 Materials and supplies $ 2,880 Work in process (Job WM-52) 14,900 Finished goods 29,500 Purchases of materials and supplies Materials $ 35,200 Supplies 4,080 Materials and supplies requisitioned for production Job WM-52 $ 12,700 Job WM-52 9,680 Job WM-54 6,680 Supplies 1,780 $ 30,840 Factory direct labor-hours (DLH) Job WM-52 900 DLH Job WM-53 750 DLH Job WM-54 500 DLH Labor costs Direct labor wages (all hours @ $24.00) $ 51,600 Indirect labor wages (500 hours) 10,000 Supervisory salaries 9,280 Building occupancy costs (heat, light, depreciation, etc.) Factory facilities $ 23,900 Sales and administrative offices 11,900 Factory equipment costs Power $ 13,400 Repairs and maintenance 8,780 Other 12,900 $ 35,080 Required: Compute the predetermined overhead rate (combined fixed and variable) to be used to apply overhead to individual jobs during the year. (Note: Regardless of your answer to requirement [a], assume that the predetermined overhead rate is 225% of direct materials cost. Use this rate in answering requirements [b] through [f], as needed.) Compute the total cost of Job WM-52 when it is finished. How much of factory overhead cost was applied to Job WM-54 during May? What total amount of overhead was applied to jobs during May? Compute actual factory overhead incurred during May. At the end of the year, Whitlock Manufacturing had the following account balances: Underapplied overhead $ 50,800 Work-in-process inventory 22,600 Finished goods inventory 190,300 Cost of goods sold 1,845,900