Compute contribution margin and break-even point. E5.10 (LO 3, 4), AP Service in the month of March, Style Salon Ltd. services 560 clients at an average price of HK$1,200. During the month, fixed costs were HK$210,240 and variable costs were Variable 403200X0.6 costs: 60% of sales. Instructions a. Determine the contribution margin in total, per unit, and as a ratio. b. Using the contribution margin technique, compute the break-even point in dollars and in units