Using exhibit 7–13 as a guide, compute the product margins for the b300 and t500 under the company’s traditional costing system. 2. using exhibit 7–11 as a guide, compute the product margins for b300 and t500 under the activity-based costing system. 3. using exhibit 7–14 as a guide, prepare a quantitative comparison of the traditional and activity-based cost assignments. explain why the traditional and activity-based cost assignments differ. problem 7–17 comparing traditional and act