Summerhouse Food Company produces and sells gourmet jam in grocery stores. Summerhouse's accountants have produced the following contribution format income statement for January. Sales (4.900 units) $ 161.700 Variable expenses 92.169 Contribution margin 69,531 Fixed expenses 50,800 Net operating income $ 18,731 if the company sells 5.100 units, its total contribution margin should be closest to: $80.800 $19,496 $69.531 $72.369