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Chapter 17 Plantwide vs. ABC Costing Inside Out, Company designs custom showroom spaces in interior design marts across the country. The following data pertain to a recent reporting period. Driver Overhead Cost 750 direct labor hours $127,500 1,200 design hours $96,000 15,000 square feet $21,000 Design Department Client consultation Drawing Models Project Management Supervision Billings 225 days 150 jobs $40,500 $54,000 Required a. Compute plantwide overhead rate using direct labor hours. b. Use ABC to compute overhead rates for each activity. c. Assign costs for both plantwide and ABC to a 3,000 square-foot job that requires 70 direct labor hours, 20 design hours, and 14 days to complete