Osprey Machine Works has the following demand requirements and other data for the upcoming four quarters. Previous quarter's Quarter Demand 2500 units output 1 2300 Beginning inventory 200 units Stock-out (back-order) 2 2400 $50 per unit cost 3 2600 Inventory holding cost $10 per unit at end of quarter 4 2100 Hiring workers $4 per unit Laying off workers $8 per unit Unit cost $30 per unit Overtime $10 extra per unit $60 per unit Subcontracting Determine the cost for the following aggregate planning strategies: