Panamint Systems Corporation is estimating activity costs associated with producing disk drives, tapes drives, and wire drives. The indirect labor can be traced to four separate activity pools. The budgeted activity cost and activity base data by product are provided below.

				Activity Cost							Activity Base
Procurement				$352,000							Number of purchase orders
Scheduling				$213,200							Number of production orders
Materials handling				$454,500							Number of moves
Product development				$725,300							Number of engineering changes
Production				$1,401,500							Machine hours
	Number of Purchase Orders			Number of Production Orders				Number of Moves			Number of Engineering Changes				Machine Hours			Number of Units
Disk drives	3,800			310				1,500			11				2,100			2,200
Tape drives	1,700			215				580			6				8,300			3,900
Wire drives	12,600			960				3,700			29				11,600			3,000

Determine the activity rate for product development per change.

a. $33,112

b. $70,953

c. $7,884

d. $15,767