Packard Products uses a job-costing system for its units, which pass from the Machining Department, to the Assembly Department, to finished-goods inventory. The Machining Department is heavily automated; in contrast, the Assembly Department performs a number of manual-assembly activities. The following information relates to the Machining Department for the year just ended: Budgeted manufacturing overhead $8,000,000 Actual manufacturing overhead 7,975,000 Budgeted machine hours 500,000 Actual machine hours 510,000 The Machining Department data that follow pertain to job no. 243, the only job in production at year-end. Direct materials $64,800 Direct labor cost 35,200 Machine hours 450 Required: A. Assuming the use of normal costing, calculate the predetermined overhead rate that is used in the Machining Department. B. Compute the cost of the Machining Department's year-end work-in-process inventory