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Windsor Company uses the gross profit method to estimate inventory for monthly reporting purposes. Presented below is information for the month of May. Inventory, May 1 Purchases (gross) Freight-in Sales revenue Sales returns Purchase discounts $ 149,100 683,200 28,700 998,600 76,500 11,000 (a) Compute the estimated inventory at May 31, assuming that the gross profit is 25% of net sales. The estimated inventory at May 31 $