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5- Contribution margin equals: a. 3b. 2c.10d.120 *** If the percentage change in sales is 30%. The percentage change in fixed costs is 80%, and the percentage change in net operating profit is 90%. The company was fully funded by ownership Answer the following three questions (6-7-8): 6- The degree of operational leverage is equal to: A- I time. B-3 times. C-4 times. D- None of the above. 7- The degree of financial leverage equals: a. 1 time. NS. 3 times c. 90% d. 9 times 8- The degree of total lift is equal to: a. 1800 b. 3 times c. 90% D - none of the above