Answer:
The tennis department relevant costs are variable manufacturing costs ($220,000) and product design ($100,000).
Step-by-step explanation:
First of all Wilson should eliminate its tennis department (since it is not profitable) only if it can use their production facilities to make something else that does generate profit or just sell that facility.
tennis department net profit = $400,000 - $520,000 = -$120,000 or $120,000 net loss
The department's major cost comes from the allocation of $200,000 in facility level costs, but these costs are not relevant. Relevant costs are costs that can be avoided by making a business decision like closing a business department.