Activity Cost Activity Base Procurement $349,900 Number of purchase orders 234,900 Number of production orders Scheduling Materials handling 429,600 Number of moves Product development 715,200 Number of engineering changes 1,435,400 Machine hours Production 3) Number of Purchase Orders Number of Production Orders Number of Moves Number of Engineering Changes Machine Number of Units Hours Disk drives 3,940 410 1,270 11 2,500 2,300 7 8,800 3,900 30 10,400 2,100 Tape drives 2,500 155 520 Wire drives 11,100 910 3,500 The activity rate for the scheduling activity cost pool is Oa. $237.22 per production order Ob. $159.25 per production order Oc. $19.95 per production order