YYYYYYY In the month of June, Al Jamil Beauty Salon gave 5,400 haircuts, shampoos, and permanents at an average price of $ 30. During the month, fixed costs were $ 36,000 and variable costs were 70% of sales. Instructions (a) Determine the contribution margin in dollars per unit, and as a ratio. (b) Using the contribution margin technique, compute the break-even point in dollars and in units. (C) Compute the margin of safety in dollars and as a ratio