Moon Appliance manufactures a variety of appliances which all use Part B89. Currently, Moon Appliance manufactures Part B89 itself. It has been producing 9,000 units of Part B89 annually. The annual costs of producing Part B89 at the level of 9,000 units include: Direct materials $3.00 Direct labor $8.00 Variable mfg ovhd $4.00 Fixed mfg ovhd $3.00 Total cost $18.00 all of the fixed manufacturing overhead cost would continue wheter par b89 is made internally or purcharse from outside supplier '\ what is hte hight price to pay.