Exercise 6-4 Computing and using the CM Ratlo [LO6-3] Last month when Holiday Creations, Inc., sold 41,000 units, total sales were $298.000, total variable expenses were $211.580, and fixed expenses were $39.600. Required: 1. What is the company's contribution margin (CM) ratio? 2 What is the estimated change in the company's net operating income if It can Increase total sales by $2,700? (Do not round Intermediate calculations.) 1. Contribution margin ratio 2. Estimated change in net operating income