Sorin Inc., a company that produces and sells a single product, has provided its contribution format income statement for January. Sales (4,200 units) $ 151,200 Variable expenses 100,800 Contribution margin 50,400 Fixed expenses 42,400 Net operating income $ 8,000 If the company sells 4,600 units, its total contribution margin should be closest to: O $54,600 O $55,200 $59,800 O $13,362