Sorin Incorporated, a company that produces and sells a single product, has provided its contribution format income statement for January. Sales (3,100 units) $ 86,800 Variable expenses 38,192 Contribution margin 48,608 Fixed expenses 36,900 Net operating income $ 11,708 If the company sells 3,500 units, its total contribution margin should be closest to: Note: Do not round intermediate calculations.