The inventory records for Radford Co. reflected the following: Beginning inventory @ May 1 First purchase @ May 7 Second purchase @ May 17 Third purchase @ May 23 Sales @ May 31 2,200 units @ $6.00 2,300 units @ $6.20 2,500 units @ $6.30 2,100 units @ $6.40 6,900 units @ $7.90 What is the amount of ending inventory assuming the FIFO cost flow method