The inventory records for Radford Comparty reflected the following Beginning inventory on May 1 1,400 unite $4.40 Piret purchase on May 7 1,500 units 34.60 Second purchase on May 17 1,700 unito . $4.70 Third purchase on MAY 23 1,300 units $4.80 Sales on Nay 31 4,500 unita $6.30 What is the amount of cost of goods sold assuming the LIFO cost flow method is used