In the month of March, Crane Salon services 630 clients at an average price of $170. During the month, fixed costs were $22,440 and variable costs were 70% of sales. (a) Determine the total contribution margin in dollars, the per unit contribution margin, and the contribution margin ratio. Contribution margin in dollars $ Contribution margin per unit $ Contribution margin ratio % (b) Using the contribution margin technique, compute the break-even point in dollars and in units. Break-even sales $ Break-even sales units