Chapter 6 HW Exercises 2 P Seved Help Save & Frit Submit Check my work Last month when Holiday Creations, Incorporated, sold 43,000 units, total sales were $172,000, total vanable expenses were $134,360, and fixed expenses were $36,100 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 sales volume by 275 units and total sales by $1100? (Do not round intermediate calculations.) 1. Contribution margin ratio 2. Estimated change in net operating income