Citrus Industries has three product lines, A, B, and C. The following information is available: A B C Sales $60,000 $90,000 $24,000 Variable costs 36,000 48,000 20,000 Contribution margin $24,000 $42,000 $4,000 Fixed costs: Avoidable 9,000 18,000 3,000 Unavoidable 6,000 9,000 2,400 Operating income $9,000 $15,000 $(1,400) Assuming Citrus Industries can increase the selling price of product C to $30,000, all other information remaining constant, operating income will: