3 1 point Which of the following is the correct formula for the Contribution Margin Ratio? 000 Sales Revenue/Variable Expenses Contribution Margin/Operating Income Fixed Expenses/Sales Revenue Contribution Margin/Sales Revenue $2,700 $500 53% $25 $2,200 1 point I sell mugs for $17. It costs me $8 to make them. I sell 300 of them. My fixed expenses are $500. What is my contribution margin ratio? What is my contribution margin per unit? What is my operating income? What is my total contribution margin on my income statement? $9 $2,400 47%