PART 6. (10 minutes) 3. If a firm's margin of safety is 30% on sales of $300.000, then mag of $315.000 would be how much assume foved costs, are one who price per unit do not change)? b. The degree of operating leverage for company A is 2 times and the degree of operating leverage for company B is 1.5 times. If sales volume for Company A and Company increases by 20%, this means that the profit for Company A & Company will increase or decrease by how much%