Chapter Eleven Aggregate Planning and Master Scheduling 497 Jul Sep Oct Noy Dec h Month Aug 340 320 360 380 400 400 Forecast Output 300 300 20 20 Regular Overtime Subcontract Output-Forecast 300 20 30 300 20 40 300 20 40 30 60 300 30 70 Inventory Beginning Ending Average c. (Refer to part b) After complaints from some workers about working overtime every month during the first half of the year, the manager is now considering adding some temporary workers for the second half of the year, which would increase regular output to a steady 350 units a month, not using any overtime, and using subcontracting to make up needed output. Determine the total cost of that plan