XYZ company has sales of $260,000, a contribution margin ratio of 60%, and a target profit of $30,000. If 15,000 units were sold, what is the variable cost per unit? Select one: a. $6.93 b. $9.00 c. none of the given answers. d. $10.40 e. $8.67 Which of the following would produce the largest decrease in the contribution margin per unit? Select one: a. A 23% increase in the number of units sold. b. A 17% decrease in fixed cost, C. A 14% increase in variable cost. d. A 7% increase in selling price. e. A 15% increase in selling price