Sofa So Good Australia manufactures a variety of sofa beds. Its costing system uses a simple cost system. There are two direct-cost categories and one indirect-cost pool. The manufacturing overhead costs in the indirect cost pool are allocated to cost objects using direct manufacturing labour hours. In 2019, the company manufactured two styles of sofa beds: Regular and Deluxe. The following data were available for 2019. Regular Deluxe Sales 5,000 units 250 units Direct material cost per unit $120.00 $250.00 Direct labour cost per unit $100.00 $30.00 Manufacturing overhead cost per unit $150.00 $45.00 Upstream activity cost per unit (Research and design) 60.00 110.00 Downstream activity cost per unit (Marketing, distribution, and customer service) 130.00 230.00 Resources usage Per Unit Total Per Unit Total Number of parts 1 5,000 5 1,250 Machine hours 2 10,000 8 2,000 Direct labour hours 5 25,000 1.5 375 The cost accountant of the company, Mr Moris, recently attended a seminar on activity-based costing and is considering using it at the company to analyze and allocate manufacturing overhead costs. He met with all the key managers and they agreed that the following three key activities drive manufacturing overhead costs at Sofa So Good Australia. Manufacturing Activity Budgeted Manufacturing Overhead Costs Cost Driver Used As Allocation Base Materials handling $231,000 Parts Cutting and machining 378,000 Machine hours Assembly 152,250 Direct manufacturing labour-hours 761250 Required: (a) Compute the Regular and Deluxe product cost per unit using the simple cost system. (4 marks) (b) Compute the Regular and Deluxe product cost per unit using the Activity Based Costing system. (8 marks) (c) Compare the cost per unit for each product in (a) and (b) above. Why do the simple and activity based costing systems differ in the cost per unit for each product? Why might these differences be important for Sofa So Good Australia Company?