The inventory records for Radford Company reflected the following: Beginning inventory @ May 1 First purchase @ May 7 Second purchase @ May 17 Third purchase @ May 23 Sales d May 31 100 units @ $4.15 300 units @ $4.55 500 units @ $4.75 100 units @ $4.95 900 units @ $7.95 What is the amount of ending inventory assuming the FIFO cost flow method