In the month of March, Ivanhoe Salon services 550 clients at an average price of $150. During the month, fixed costs were $26,880 and variable costs were 60% of sales. (a) Determine the total contribution margin in dollars, the per unit contribution margin, and the contribution margin ratio. Contribution margin in dollars $enter the contribution margin amount in dollars Contribution margin per unit $enter the contribution margin per unit amount in dollars Contribution margin ratio