Contribution Margin Willie Company sells 16,000 units at $48 per unit. Variable costs are $38.88 per unit, and fixed costs are $56,900. Determine (a) the contribution margin ratio, (b) the unit contribution margin, and (c) income from operations. a. Contribution margin ratio (Enter as a whole number.) % b. Unit contribution margin (Round to the nearest cent.) $ per unit c. Income from operations $