nfor mation wh ufacturing, Inc. uses a normal costing system in which it uses direct-labor hours as its overhead allocation base (cost driver) and prior year results in preparing its current year budget. Prior year amounts are as follows: Cost Prior year amount Type of $380,000 Variable Variable Direct materials Direct labor (10,000 hours) Sales commissions Factory supplies Manufacturing equipment maintenance Freight-out (delivery expense) Rent on factory building Depreciation on manufacturing equipment Sales salaries Production supervisor salary Administrative salaries 250,000 30,000Variable 4,000 8,000 Variable Variable 6,500 Variable 60,000 25,000 40,000 55,000 85,000 Fixed Fixed Fixed Fixed Fixed 20. Calculate the predetermined yariable OH rate which will be used in the current year for applying OH to jobs. 21. Calculate the predetermined fixed OH rate which will be used in the current year for applying OH to jobs. Calculate the predetermined total OH rat for applying OH to jobs (note: there are two possible ways to arrive at the correct answer) 22. e which will be used in the current year 23. Calculate the total amount of OH applied to jobs during the current year if actual direct labor hours worked totaled 9,900 hours. 24. Assume that actual OH costs for the year totaled $153,000. Compute the amount of over or underapplied OH and explain how this occurred. You may use the t-account given below to help you arrive at the answer. Manufacturing Overhead Is OH overapplied or underapplied