What is the contribution margin ratio (rounded)?

a. 16.67%

b. 100%

(c.) 83.33%

d. need sales volume to calculate Grand Canyon Railway operates a turn-of-the-century train that transports passengers from Williams, Arizona, to the Grand Canyon and back every day. Assume that the train tickets sell for $60 per passenger, the railway’s variable costs are $10 per passenger, and its fixed expenses are $50,000 each month.