Check my work Last month when Holiday Creations, Inc., sold 36,000 units, total sales were $288,000, total variable expenses were $210,240, and foed expenses were $37,300. Required: 1. What is the company's contribution margin (CM) ratio? 2. What is the estimated change in the company's net operating income if it can increase total sales by $2,300? (Do not round Intermediate calculations.) % 1. Contribution margin to 2. Estimated change in neper income