$21,375 and variable costs were 75% of sales: (a) Determine the contribution margin in dollars, per unit, and as a ratio. (Round per unit value to 2 decimal ploces es 52.75 and final answer to 0 decimal ploces, es. 5,275.) Contribution margin (in doliars) Contribution margin (per unit) Contribution margin (ratio) In June, Blossom Salon gave 2,500 haircuts, shampoos, and permanents at an average price of $45. During the month, fixed costs were $21,375 and variable costs were 75% of sales. (a) Determine the contribution margin in dollars, per unit, and as a ratio. (Round per unit walue to 2 decimal ploces eg. 52.75 and final answer to 0 decimal places,eg. 5.275. Contribution margin (in dollars) Contribution margin (per unit) Contribution margin (ratio) %