Contribution Margin Harry Company sells 37,000 units at $30 per unit. Variable costs are $18.60 per unit, and fixed costs are $156,100. 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.) C. Income from operations per unit