OAly budgeted data are available for the Data Product C R $500,000 $300,000 $900,000 Variable expenses 300,000 210000 20,000 Contribution margin $200,000 $90,000 $130,000 Product Product Sales J Budgeted operating income for the month is $220,000. Required: a) Calculate the break-even sales for the month. (8 Marks) b) Calculate the margin of safety. (2 Marks) c) Calculate the degree of operating leverage. (2 Marks)