Kent Co. manufactures a product that sells for $51.00 and has variable costs of $29.00 per unit. Fixed costs are $231,000. Kent can buy a new production machine that will increase fixed costs by $16,000 per year, but will decrease variable costs by $4.00 per unit. Compute the contribution margin per unit if the machine is purchased. Multiple Choice $18.00. $29.50. $22.00. $26.00. $33.00.