denly company has three products, a, b, and c. the following information is available: product a product b product c sales $60,000 $90,000 $24,000 variable costs 36,000 48,000 15,000 contribution margin 24,000 42,000 9,000 fixed costs: avoidable 9,000 18,000 6,000 unavoidable 6,000 9,000 5,400 operating income $ 9,000 $15,000 $ (2,400) assuming product c is discontinued and the space formerly used to produce product c is rented for $12,000 per year, operating income will: