Exercise 18-9 (Algo) Contribution margin and break-even LO P2 Sunn Compary monutactures a single product that sells for $155 per unit and whose variable costs are $124 per unit. The company's annual fixed costs are $480,500. Exercise 18-9 (Algo) Contribution margin and break-even LO P2 Sunn Compary monutactures a single product that sells for $155 per unit and whose variable costs are $124 per unit. The company's annual fixed costs are $480,500