Blake Industries uses 13 units of part JR63 each month in the production of radar equipment. The cost of manufacturing one unit of JR63 is the following:

Direct material	$	4,500
Material handling (20% of direct-material cost)		900
Direct labor		40,000
Manufacturing overhead (150% of direct labor)		60,000
Total manufacturing cost	$	105,400

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. Blake Industries annual manufacturing overhead budget is one-third variable and two-thirds fixed. Scott Supply, one of Blake Industries reliable vendors, has offered to supply part number JR63 at a unit price of $65,000.

Required:

1. If Blake Industries purchases the JR63 units from Scott, the capacity Blake Industries used to manufacture these parts would be idle. Should Blake Industries decide to purchase the parts from Scott, the unit cost of JR63 would increase (or decrease) by what amount?
2. Assume Blake Industries is able to rent out all its idle capacity for $95,000 per month. If Blake Industries decides to purchase the 13 units from Scott Supply, Blake monthly cost for JR63 would increase (or decrease) by what amount?
3. Assume that Blake Industries does not wish to commit to a rental agreement but could use its idle capacity to manufacture another product that would contribute $179,000 per month. If Blake's management elects to manufacture JR63 in order to maintain quality control, what is the net amount of Blake's cost from using the space to manufacture part JR63?