Trace Resources to Activities Before Products
Explain and apply the resource -> activity -> cost object flow in an ABC model.
ABC is a causality map before it is a costing spreadsheet. Teach Activity-based costing starts with a different causal story than traditional overhead allocation. Instead of asking, "Which product gets what share of a department total?", it asks, "Which activities consume resources, and which products, customers, or channels consume those activities?" The mechanism is a two-stage trace. Resource costs such as warehouse salaries, software licenses, supervisors, rent, and equipment are first assigned to activity pools such as picking, inspection, engineering change review, onboarding, or returns handling. Then each activity pool is assigned to cost objects using a cost driver that…
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