Campbell, Inc. sold 110,000 units last year for $7.00 each. Variable costs per unit were $1.40 for direct materials, $2.45 for direct labor, and $.35 for variable overhead. Fixed costs were $30,000 in manufacturing overhead and $17,000 in nonmanufacturing costs. a. What is the total contribution margin? Total Contribution Margin b. What is the unit contribution margin? (Round your answer to 2 decimal places.) Unit Contribution Margin c. What is the contribution margin ratio? (Round your intermediate calculations to 2 decimal places.) Contribution Margin Ratio % d. If sales increase by 38,000 units, by how much will profits increase? (Round your intermediate calculations to 2 decimal places.) Profits Increase