Aggregate Plan Decision Variables Ht W Ot It Pt Period # Hired # Laid off #Workforce Overtime Inventory Production Demand 0 500 20,000 1 75 0 575 0 0 230,000 250,000 2 203 0 778 0 11,111 311,111 300,000 3 0 778 77,778 0 388,889 400,000 4 28 750 0 0 300,000 300,000 Aggregate Plan Costs Period Hiring Lay off Regular time Over time Inventory 1 75,000 0 2,760,000 0 0 2 202,778 0 3,733,333 0 44,444 3 0 0 3,733,333 1,166,667 0 4 0 41,667 3,600,000 0 0 Total Cost = $ 15,357,222