In the month of June, Cullumber Hebert's Beauty Salon gave 5,000 haircuts, shampoos, and hair colorings at an average price of $30. During the month, fixed costs were $16,500 and variable costs were 80% of sales. (a) Determine the contribution margin in dollars, per unit and as a ratio. (Round contribution margin per unit to 2 decimal places, es: 5.75.) Contribution margin $ Unit contribution margin Contribution margin ratio eTextbook and Media Attempts: 0 of 10 used