Filson Inc., a company that produces and sells a single product, has provided its contribution format income statement for February. Sales (9,500 units)...............$769,500 Variable expenses................ 522,500 Contruibution margin.............247,000 Fixed expenses....................174,500 Net operating income......... $ 72,500 If the company sells 9,700 units, its total contribution margin should be closest to: a. $252,200 b. $74,026 c. $247,000 d. $263,200