Dentech, Inc., uses 12 units of part RM67 each month in the production of dentistry equipment. The cost of manufacturing one unit of RM67 is the following:

Direct material	$	2,500
Material handling (20% of direct-material cost)		500
Direct labor		33,000
Manufacturing overhead (150% of direct labor)		49,500
Total manufacturing cost	$	85,500

Material handling represents the direct variable costs of the Receiving Department that are applied to direct materials and purchased components on the basis of their cost. This is a separate charge in addition to manufacturing overhead. Dentechs annual manufacturing overhead budget is one-third variable and two-thirds fixed. Scott Supply, one of Dentechs reliable vendors, has offered to supply part number RM67 at a unit price of $54,000.

Required:
1.	If Dentech purchases the RM67 units from Scott, the capacity Dentech used to manufacture these parts would be idle. Should Dentech decide to purchase the parts from Scott, the unit cost of RM67 would increase (or decrease) by what amount?

2.	Assume Dentech is able to rent out all its idle capacity for $84,000 per month. If Dentech decides to purchase the 12 units from Scott Supply, Dentechs monthly cost for RM67 would increase (or decrease) by what amount?

3.	Assume that Dentech does not wish to commit to a rental agreement but could use its idle capacity to manufacture another product that would contribute $168,000 per month. If Dentechs management elects to manufacture RM67 in order to maintain quality control, what is the net amount of Dentechs cost from using the space to manufacture part RM67?