Buffo Company fabricates metal folding chairs. Data concerning the company's revenue and cost structure follow: $35 Selling price per unit $4,000 per month plus Manufacturing cost $17 per unit $2,500 per month plus Administrative expense $2.50 per unit Sales commissions 15% of sales Advertising expense $2.000 per month If Buffo expects to produce and sell 5.000 units next month. the expected net operating income would be