Last month when Holiday Creations, Incorporated, sold $44,000$ units, total sales were $$176,000,$ total variable expenses were

$$130,240,$ and fixed expenses were $$35,600.$

Required:

What is the company's contribution margin $($CM$)$ ratio?

What is the estimated change in the company's net operating income if it can increase sales volume by $500$ units and total sales by

$$2,000?($Do not round intermediate calculations.$)$

Contribution margin ratio

Estimated change in net operating incomelast month when Holiday Creations, Incorporated, sold $44,000$ units, total sales were $$176,000,$ total variable expenses were $$130,240,$ and fixed expenses were $$35,600.$