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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. Procurement Scheduling Materials handling Activity Cost Activity Base $388,000 Number of purchase orders 232,100 Number of production orders 468,200 Number of moves 712,600 Number of engineering changes 1,446,000 Machine hours Product development Production Number of Purchase Orders Number of Production Orders Number of Number of Engineering Changes Number of Machine Hours Moves Units 4,160 410 1,430 14 1,600 Disk drives Tape drives 1,500 3,700 1,600 145 720 5 9,000 3,900 28 11,400 2,900 Wire drives 12,500 930 The activity-based cost for each wire drive unit is Oa. $210.75 Ob. $387.06 Oc. $650.57 Od. $21.25