Answer:
relevant costs and expenses for segment A:
Sales revenue $330,000
COGS ($242,000)
Commissions ($30,000)
Contribution margin $58,000
Advertising expense ($6,000)
Relevant Oper. income $52,000
General fixed operating expenses are not relevant since they will occur whether or not segment A continues to operate.
If the company discontinues segment A, then its operating profit will be:
Sales revenue $980,000
COGS ($374,000)
Commissions ($88,000)
Contribution margin $518,000
Fixed oper. expenses ($276,000)
Advertising expense ($20,000)
Operating income $222,000
If the company keeps segment A, then its operating profits will be:
Sales revenue $1,310,000
COGS ($616,000)
Commissions ($118,000)
Contribution margin $576,000
Fixed oper. expenses ($276,000)
Advertising expense ($26,000)
Operating income $274,000
It is better to keep segment A.