The following monthly budgeted data are available for the Stark Company: Sales Variable expenses Contribution margin Product A $500,000 300,000 $200,000 Product B $300,000 210,000 $90,000 Producto $900,000 720,000 $186,000 The budgeted operating income for the month is $208,000. Submission Instructions: a. Calculate the break-even sales for the month. b. Calculate the margin of safety. C. Calculate the degree of operating leverage (two decimal points)