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E5 .18 Explain the difference between traditional and activitybased costing. (LO 1 ) Khan Inc. has conducted the following analysis related to its product lines using a traditional costing system (volume-based) and an activity-based costing system. Both the traditional and activity-based costing systems include direct materials and direct labour costs. Total Costs Products Sales Revenue Traditional ABC Product 440x $180,000 $55,000 $50,000 Product 137Y 160,000 50,000 35,000 Product 2498 70,000 15,000 35,000 Instructions a For each product line, calculate operating income using the traditional costing system. b For each product line, calculate operating income using the activity-based costing system. c. Using the following formula, calculate the percentage difference in operating income for each of Khan's product lines: [Operating Income (ABC) , Operating Income (traditional cost)] + Operating Income (traditional cost). (Round the percentage to two decimals.) 14 d. Provide a rationale for Why the costs for Product 440X are approximately the same using either the traditional or activity-based costing system