1. Sorin Inc., a company that produces and sells a single product, has pro format income statement for January. Sales (4,200 units $155,400 Variable expens Contribution margin.... Fixed expenses. Net operating income .. 100,800 54,600 42,400 $ 12,200 f the company sells 4,600 units, its total contribution margin would be A) $54,600 ) $59,800 ) $69,400 ) $13,362