A company sells small motors as a component part to automobiles. The Model 101 motor sells for $880 and has per-unit variable costs of $440 associated with its production. The company has fixed expenses of $90,000 per month. In August, the company sold 420 of the Model 101 motors. A. Calculate the contribution margin per unit for the Model 101. Contribution margin $fill in the blank 307c48f8b031065_1 per unit B. Calculate the contribution margin ratio of the Model 101. Contribution margin ratio fill in the blank 307c48f8b031065_2 % C. Prepare a contribution margin income statement for the month of August. Use a minus sign for a net loss if present.