Ceradyne Manufacturing Company expects annual manufacturing overhead to be $ 1,5 12,000. The company also expects 84,000 direct labor hours costing $ 1,680,000 and machine run time of 47,250 hours. Calculate predetermined overhead allocation rates based on direct labor hours, direct labor cost, and machine time. (Round direct labor cost to 2 decimal places, e.g. 15.25 and all other answers to 0 decimal places, e.g. 5,275.) Predetermined overhead allocation $ C