If the estimated rate of gross profit is 30%, what is the estimated cost of the inventory on S 30, based on the following data? Sep. 1 Inventory (at cost) Sep. 1-30 Purchases, net (at cost) Sep. 1-30 Sales $125,000 300,000 150,000 O$320,000 O$275,000 O$192,500 O$105,000 KPi Previous