How Question Content Area Contribution Margin United Merchants Company sells 40,000 units at $31 per unit. Variable costs are $25.42 per unit, and fixed costs are $102,700. Determine (a) the contribution margin ratio, 

(b) the unit contribution margin, and (c) operating income. 

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. Operating income