I'm stuck on Part B - Requirement 9. Please help. I've provided the work up till that point. If you see something wrong in Req. 5-8, please let me know.

Quivers Inc. began operations on January 1 of the current year. The company produces eight-ounce bottles of jet wax called Ophelia Shine. The wax is sold wholesale in 12-bottle cases for $100 per case. There is a selling commission of $20 per case. The January direct materials, direct labor, and factory overhead costs are as follows: