Help Last month when Holiday Creations, Incorporated, Sold 44,000 units, total sales were $176,000, total variable expenses were $137.280 and fed expenses were $39.300 Required: 1. What is the company's contribution margin (CM ratio? 2. What is the estimated change in the company's net operating income can increase sales volume by 350 units and total sales by $1400? (Do not round Intermediate calculations.) 1. Contribution marginatio 2. Estimated change in net operating income