Last month when Holiday Creations, Incorporated, sold 42.000 units total sales were 5168,000 total variable expenses were $120,960, and fixed expenses were $37,600 Required: 1. What is the company's contribution margin (CM) ratio? 2 What is the estimated change in the companys net operating income it can increase sales volume by 525 unts and total sales by $2,100? (Do not round intermediate calculations.) 1. Contribution margin ratio 2. Estimated change in net operating Income nice