Mazoon Company has information on its revenue and costs is as follows: Selling price per unit $175; Variable costs per unit includes: Direct material $60, Direct manufacturing labor $8. Manufacturing overhead $8, and Selling costs $10; Annual fixed costs $45,000. What is the contribution margin percentage? O a. 50.9% O b. None of the given answers Oc. 56.6% O d. 49.1% Oe. 61.1%