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Jose Martinez of El Paso has developed a polished stainless steel tortilla machine that makes it a "showpiece" for display in Mexican restaurants His forecast of capacity and demand follows 1 140 2 160 Month 3 130 4 220 5 210 Demand Capacity Regular time Overtime 150 140 10 150 30 150 20 150 10 10 Subcontracting 90 units available over the 6-month penod Beginning inventory 0 units Ending inventory required 20 units Costs Regular time cost per unit Overtime cost per unit Subcontract cost per unit Inventory holding cost per unit per month $80 $115 $125 $3 Assume that backorders are not permitted Using the transportation method, the total cost of the optimal plan is $(enter your response as a whole number)