Brewco sells coffeemakers for $120 each. the firm currently has variable costs per unit of $65. if brewco is able to reduce its variable cost per unit to $58, its contribution margin ratio will

a. decrease by about 6 percent.
b. decrease by about 8 percent.
c. increase by about 6 percent.
d. increase by about 8 percent.

You own a nonunion company with 93 nonexempt employees. all of these employ- ees pack books into boxes for shipment to customers throughout the united states. because of wide differences in performance, you have decided to try performance appraisal, something never done before. until now, you have given every worker the same size increase. now you want to measure performance and reward the best performers with bigger increases. without any further information, which of the five types of appraisal formats do you think would be most appropriate? justify your answer. do you anticipate any complaints, or other comments, from employees after you implement your new system?