242 UNIT 3: Show Me the Monev: Finding, Securing, and Managing It 7-9. Calculate Total Contribution Margin for the same items Total Variable Costs Total Contribution Margin Total Revenue $50.00 $66.00 a. $116.00 b. C. d. . 242 UNIT 3: Show Me the Monev: Finding, Securing, and Managing It 7-9. Calculate Total Contribution Margin for the same items Total Variable Costs Total Contribution Margin Total Revenue $50.00 $66.00 a. $116.00 b. C. d