The Cook Corporation has two divisionsEast and West. The divisions have the following revenues and expenses: East West Sales $ 500,000 $ 550,000 Variable costs 200,000 275,000 Traceable fixed costs 150,000 180,000 Allocated common corporate costs 135,000 170,000 Net operating income (loss) $ 15,000 $ (75,000) The management of Cook is considering the elimination of the West Division. If the West Division were eliminated, its traceable fixed costs could be avoided. Total common corporate costs would be unaffected by this decision. Given these data, the elimination of the West Division would affect operating income by a