Answer:
Controllable margin for the year is $120,000.
Step-by-step explanation:
Controllable margin refers to contribution margin minus controllable fixed costs. Controllable margin is usually employed to assess the performance of managers because all the costs that the profit center manager can control are included in the calculation of controllable margin.
Based on the explanation above, controllable margin for this question can therefore be calculated as follows:
Controllable margin = Contribution margin - Controllable fixed costs = $300,000 - $180,000 = $120,000
Therefore, controllable margin for the year is $120,000.