Saved He Chilton, Inc. sold 12,900 units last year for $21 each Variable costs per unit were $3.00 for direct materials, $2.70 for direct labor, and $2.70 for variable overhead. Fixed costs were $60,600 in manufacturing overhead and $40,600 in nonmanufacturing costs. a. What is the total contribution margin? (Round your intermediate calculations to 2 decimal places.) 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 and final answer to 2 decimal places.) Contribution Margin Ratio 1% d. If sales increase by 2,120 units, by how much will profits increase? (Round your intermediate calculation to 2 decimal places and final answer to the nearest dollar amount.) Profits increase