Amon Company sells 180,000 units at $185 per unit. Variable costs are $111 per unit, and fixed costs are $8,175,000. Determine (a) the contribution margin ratio, (b) the unit contribution margin, and (c) operating income. Line Item Description Answer a. Contribution margin ratio fill in the blank 1 % b. Unit contribution margin $fill in the blank 2 per unit c. Operating income $fill in the blank 3