The inventory records for Radford Company reflected the following Beginning inventory on May 1 First purchase on May 7 Second purchase on May 17 Third purchase on May 23 Sale on May 31 1,100 units @ $3.80 1,200 units @ $4.00 1,400 units @ $4.10 1,000 units @ $4.20 3,600 units @ $5.70 What is the amount of gross margin assuming the FIFO cost flow method is used? Multiple Choice $14,310 $5,780 $6,840 $6,210