3 Exercise 20.3 (Algo) Computing Required Sales Volume (L020-4, LO20-5) The following is Information concerning a product manufactured by Ames Brothers. 74 sales price per unit Variable cost per unit Total fixed sarutacturing and dperating costs (per non) 430,000 also a. Determine the unit contribution margin b. Determine the number of units that must be sold each month to break even (Round your answer to the nearest whole number.) c. Determine the number of units that must be sold to earn an operating income of $234.000 per month. (Round your answer to the nearest whole number) Unit contribution margin Break-events Target sales in units