Question 10 (3 points) For Plerce Company, sales is $500,000 variable expenses are $340,000, and fixed expenses are $140,000. Pierce's contribution margin ratio is a 4%. 2896 b 0 0 0 0 32% d 68% Variable (unit-level) costs per unit increase as production decreases. stay the same at any level of production. decrease as production decreases. increase as production increases. od