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Aggregate demand for a product family is given in the table below for the upcoming four months. The table also reports the planned number of workers in each month and the number of workers and the ending inventory in the previous month. The particulars for the aggregate planning strategy are enumerated below: Workers are paid $2000 per month and produce 50 units per month. Workers can be hired or fired at the beginning of a month: Hiring costs are $790 per worker hired and firing costs are $210 per worker fired. The inventory cost is $2 per unit per quarter. When necessary, units can be subcontracted at a cost of $60 per unit. Compute the total annual cost of meeting demand for the upcoming four months. Report as a whole number with no commas. Number Number Month Demand Number Fired Units produced Subcontract Inventory workers Hired 2 200 1 600 2 ? ? ? ? ? 2 700 1 ? ? ? ? ? 3 800 6 ? ? ? ? ? 4 900 3