Presented here is the income statement for Big Sky Incorporated for the month of February:

Based on an analysis of cost behavior patterns, it has been determined that the company's contribution

margin ratio is $17\%.$

Required:

a$.$ Rearrange the preceding income statement to the contribution margin format.

b$.$ If sales increase by $10\%,$ what will be the firm's operating income $($or loss$)?$

c$.$ Calculate the amount of revenue required for Big Sky to break even.