In June. Crane Salon gave 4.300 haircuts, shampoos, and permanents at an average price of $ 40. During the month, fixed costs were 44,040 and variable costs were 70% of sales Determine the contribution margin in dollars, per unit, and as a ratio. (Round per unit value to 2 decimal places, es. 52.75 and final answer to decimal places, e.g. 5,275.) Contribution margin (in dollars) $ 51600 Contribution margin (per unit) $ 12 Contribution margin (ratio) 30 % Using the contribution margin technique, compute the break-even sales dollars and sales units. Break-even sales dollars $ 146800 Break-even sales units 3670 units Compute the margin of safety dollars and as a ratio. (Round answers to 0 decimal places, e.g. 5,275.) Margin of safety in dollars $ Margin of safety ratio %