In the month of June, Paula's Beauty Salon gave 3,300 haircuts, shampoos, and permanents at an average price of $34. During the month, fixed costs were $14,994 and variable costs were 79% of sales. Determine the contribution margin in dollars, per unit, and as a ratio. (Round contribution margin per unit to 2 decimal places, e.g. 10.50, and the other answers to 0 decimal places, e.g. 125.) Contribution margin per unit