Contribution Margin Molly Company sells 26,000 units at $28 per unit. Variable costs are $21.28 per unit, and fixed costs are $52,400. Determine (a) the contribution margin ratio, (b) the unit contribution margin, and (c) operating income. a. Contribution margin ratio (Enter as a whole number.) b. Unit contribution margin (Round to the nearest cent.) c. Operating income $ $ % per unit