Bison Creek Company is preparing its annual profit plan. As part of its analysis of the cost of its purchasing activity, management estimates that the $250,000 for purchasing support should be assigned to the individual vendors from the information given as follows:

	Vendor A	Vendor B	Vendor C
Units purchased	100,000	100,000	50,000
Purchase orders (annual)	12	24	50
Number of Shipments received	12	54	100

a. Prepare a schedule to allocate the purchasing costs to the three vendors, assuming Bison Creek uses units purchased to compute activity-based costs.

b. Prepare a schedule to allocate the purchasing costs to the three vendors, assuming Bison Creek uses purchases orders to compute activity-based costs.

c. Prepare a schedule to allocate the purchasing costs to the three vendors, assuming Bison Creek uses number of shipments to compute activity-based costs.