Henry's Helpers provides locksmith services. One type of service call is to evaluate private residences for security concerns an make recommendations for a safety plan Use the data below to determine the company's total contrbution margin, contributio margin per service call, and contribution margin ratio when 120 service calls are made in the month of June EEB (Click the icon to view the data) Select the formula labels needed to compute the contribution margin. Then, complete the table to calculate the contribution margin per service call, then the company's total contribution margin Per call 120 calls Contribution Margin Select the formula to calculate the contribution margin ratio Contribution Margin Ratio The contribution margin ratio is Data Table -x Service Revenue 150 per service call Variable Costs Foxed Costs 75 per service call 8,000 per month Print Done Choose from any list or enter any number in the input fields and then continue to the next