Ferrante Company sells 31,000 units at $39 per unit. Variable costs are $23.40 per unit, and fixed costs are $164,400. 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.) fill in the blank 1 % b. Unit contribution margin (Round to the nearest cent.) $ fill in the blank 2 per unit c. Income from operations