In the month of June, Carla Vista Hebert's Beauty Salon gave 3,000 haircuts, shampoos, and hair colorings at an average price of $50. During the month, fixed costs were $16,500 and variable costs were 80% of sales. (a) * Your answer is incorrect. Determine the contribution margin in dollars, per unit and as a ratio. (Round contribution margin per unit to 2 decimal places, e.g. 5.75) Contribution margin Unit contribution margin Contribution margin ratio eTextbook and Media 105,000 35 70