The company has created an activity-based costing system to evaluate the profitability of its products. StanTech's ABC implementation team concluded that $50,000 and $100,000 of the company's advertising expenses could be directly traced to B300 and T500, respectively. The remainder of the selling and administrative expenses was organization-sustaining in nature. The ABC team also distributed the company's manufacturing overhead to four activities as shown below: Activity Cost Pool (and Activity Measure) Machining (machine-hours) Manufacturing Overhead Activity B300 T500 Total $ 213,500 90,000 62,500 152,500 Setups (setup hours) 157,500 75 300 375 Product-sustaining (number of products) 120,000 1 1 2 Other (organization-sustaining costs) 117,000 NA NA NA Total manufacturing overhead cost $ 608,000 Required: 1. Compute the product margins for the B300 and T500 under the company's traditional costing system. 2. Compute the product margins for B300 and T500 under the activity-based costing system. 3. Prepare a quantitative comparison of the traditional and activity-based cost assignments. Please give brief explanations why the traditional and activity-based cost assignments are different.