Answer:
degree of operating leverage: 6.04
Step-by-step explanation:
degree of operating leverage:

Where:

60 - 24 = 36
7,550 x 36 = 271.800 contribution margin
profit:
271,800 - 226,800 = 45,000
271,800 / 45,000 = 6.04
This indicates that an increase in sales will have a multiplier effect on the
income by 60.4%
a ten percent increase on sales translates to 60.4% in the operating profit
a twenty percent increase transaltes to 120.8%
and so on.