V1 Test Ch. 17, 22 Accounting 4B Section II BITCO designs custom showroom spaces in interior design marts across the country The following data pertain to activities during a recent reporting period ACTIVITIES Design Department Client consultation Drawing Models 750 contact hours 1,200 design hours 15,000 square feet $127,500 $96,000 $21,000 Project Management Supervision Billings 225 days 150 jobs $40,500 $54,000 Required a Compute a plant-wide overhead rate using number of supervision days as the allocation base b Use Activity Based Costing to compute overhead rates for each activity c Indicate the costs assigned to one of the 150 jobs (a client named StephCo), a 3,000 square-foot job that required 70 contact hours 20 design hours, and 14 days to complete Assigned costs using Plant-wide OH Rate Assigned costs using ABC Costing Job StephCo d. Briefly explain why there is a difference (if any) in the amount to allocate using the two methods In other words, explain which allocation method would be more appropriate to use