Hank's Helpers provides locksmith services. One type of service call is to evaluate private residences for security concerns and make recommendations for a safety plan. Use the data below to determine the?company's total contribution?margin, contribution margin per service?call, and contribution margin ratio when240 service calls are made in the month ofJune.

Data table Service Revenue Variable Costs Fixed Costs 5130 per service call 26 per service call 23,560 per month I' Per call Contribution Margin