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Manila Manufacturing has the following aggregate demand requirements upcoming four quarters - 700; 900; 1,200, and; 600. Other data is shown below: Previous quarter's output Beginning inventory Stockout cost Inventory holding cost Hiring workers Firing workers Subcontracting cost Unit cost Overtime 800 units O units $100 per unit $10 per unit at end of quarter $20 per unit $40 per unit $200 per unit $100 per unit $50 extra per unit What is the total cost for following chase demand by hiring and firing? What is the total cost for following chase demand by hiring and firing? O $412,500 O $339,600 O $425,000 O $378,000 O $368,500