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The Bull Grin Company produces a feed supplement for animal foods produced by a number of other companies. Producing 1,000 pounds of supplement costs $880 on regular time and $960 on overtime. No additional cost is incurred for unused regular time, overtime, or subcontractor capacity. Overtime is limited to production of a total of 20,000 pounds per quarter. In addition, subcontractors can be hired at $1,050 per thousand pounds, but only 30,000 pounds per quarter can be produced this way. The current level of inventory is 40,000 pounds, and management wants to end the year at that level. Holding 1,000 pounds of feed supplement in inventory per quarter costs $100. The latest annual forecast is shown in the table below. Period Quarter 3 Quarter 1 Quarter 2 Total Quarter 4 570,000 300,000 310,000 500,000 1,680,000 Demand (pounds) Capacities (pounds) Regular time Overtime Subcontract 390,000 20,000 30,000 400,000 20,000 30,000 460,000 20,000 30,000 380,000 20,000 30,000 1,630,000 80,000 120,000 Use the transportation method of production planning in POM for Windows to find the cost of the optimal production plan. The optimal cost is $ - (Enter your response as a whole number.)