Castle Construction Company is a mid-sized construction company with both commercial and residential customers throughout the upper midwest. Castle currently employs a traditional absorption costing system with a plantwide overhead rate, with direct labor hours as its allocation base. The accounting group at Castle is attempting to price a pair of projects, one commercial, and one residential. Cost data for Castle's business, as well as job specific data, is as follows: Estimated Actual Overhead Overhead Costs Costs Indirect Labor $ 40,000 $ 38,749 Supplies $ 13,000 $ 12,803 Carrying Costs $ 17,000 $ 17,017 Supervisor's 40,000 $ 37,688 Salary Commercial Residential Direct Materials $ 40,000 $ 80,000 Direct Labor $ 150,000 $ 350,000 Direct Labor 7,500 20,000 Hours Actual $ 20,000 $ 52,500 Overhead Units Produced 25 50 Other ta 15,000 $ 12,238 Total $ 125,000 $ 118,495 Suppose Castle Construction Company expects to use 50,000 Direct Labor Hours in the coming year. What is Castle's predetermined overhead rate? What is the unit product cost for the Commercial project? What is the unit product cost for the Residential project