The following is information concerning a product manufactured by Ames Brothers. Sales price per unit Variable cost per unit Total fixed manufacturing and operating costs (per month) $ 950 570 5,700,000 a. Determine the unit contribution margin. b. Determine the number of units that must be sold each month to break even. c. Determine the number of units that must be sold to earn an operating income of $7,600,000 per month. a. Unit contribution margin b. Break-even units c. Target sales in units