Swifty Company uses the gross profit method to estimate inventory for monthly reporting purposes. Presented below is information for the month of May $ 165,900 633,400 Inventory, May 1 Purchases (gross) Freight-in Sales revenue Sales returns Purchase discounts 30,300 998,100 64,700 11.400 (a) Compute the estimated inventory at May 31, assuming that the gross proht is 25% of net sales. The estimated inventory at May 31 $