Can you please explain how to solve this problem? (show formulas used).

Because I calculated $18,000 by subtracting the adversting - contribution margin for Wallon, but I am not sure if that was the correct approach to solve for the problem.

Keep-or-Drop Decision Charlevoix Company produces three products: Torch, Elk, and Walloon. A segmented income statement follows: Direct fixed expenses consist of depreciation and advertising. All depreciation on the equipment is dedicated to the product lines. None of the equipment can be sold. Assume that each of the three products has a different marketing campaign whose advertising would be eliminated if the associated product were dropped. Required: 1. Conceptual Connection: Estimate the impact on profit that would result from dropping Walloon. Enter amount in full, rather than in thousands. For example, "15000" rather than "15