Erkens Company uses a job costing system with normal costing and applies factory overhead on the basis of machine hours. At the beginning of the year, management estimated that the company would incur $1,860,000 of factory overhead costs and use 62,000 machine hours. Erkens Company recorded the following events during the month of April: Purchased 186,000 pounds of materials on account; the cost was $5.30 per pound. Issued 123,000 pounds of materials to production, of which 16,500 pounds were used as indirect materials. Incurred direct labor costs of $255,000 and $43,000 of indirect labor costs. Recorded depreciation on equipment for the month, $76,300. Recorded expired insurance costs for the manufacturing property, $3,800. Paid $8,800 cash for utilities and other miscellaneous items for the manufacturing plant. Completed Job H11 costing $7,800 and Job G28 costing $78,500 during the month and transferred them to the Finished goods inventory account. Shipped Job G28 to the customer during the month. The job was invoiced at 40% above cost. Used 8,300 machine hours during April. Required: 1. Compute Erkens Companys predetermined overhead rate for the year. 2. Prepare journal entries to record the events that occurred during April. 3-a. Compute the amount of overapplied or underapplied overhead. 3-b. Prepare a journal entry to close overapplied or underapplied overhead into cost of goods sold on April 30