Mazoon Company has information on its revenue and costs is as follows: Selling price per unit $70: Variable costs per unit includes: Direct material $16, Direct manufacturing labor $8, Manufacturing overhead $8, and Selling costs $10; Annual fixed costs $85,000. What is the contribution margin percentage? O a. 40% O b. 60% c. 52.5% O d. 70% O e. None of the given answers