Managerial accounting, please help me solve.

Contribution Margin United Merchants Company sells 39,000 units at $41 per unit. Variable costs are $34.44 per unit, and fixed costs are $102,300. Determine (a) the contribution margin ratio, (b) the unit contribution margin, and (c) operating income. a. Contribution margin ratio (Enter as a whole number.) b. Unit contribution margin (Round to the nearest cent.) % c. Operating income $ per unit 5