LO 3.5Macom Manufacturing has total contribution margin of $61,250 and net income of $24,500 for the month of June. Marcus expects sales volume to increase by 10% in July. What are the degree of operating leverage and the expected percent change in income for Macom Manufacturing?

0.4 and 10%
2.5 and 10%
2.5 and 25%
5.0 and 50%