The following is Alsatia Corporation's contribution format income statement for last month:

Sales	$1,400,000
Variable expenses	$900,000
Contribution margin	$500,000
Fixed expenses	$300,000
Net operating income	$200,000

The company has no beginning or ending inventories and produced and sold 10,000 units during the month.

a. What is the companys contribution margin ratio?

b. What is the comapny's break even in units?

c. If sales increase by 100 units, by how much should net operating income increase?

d. How many units would the company have to sell to attain target profits of $225,000?

e.What is the company's margin of safety in dollars?

f. What is the company's degree of operating leverage?