The inventory records for Radford Co. reflected the following 62 Beginning inventory @ May 1 First purchase @ May 7 second purchase @ May 17 Third purchase @ May 23 Sales @ May 31 600 units @ $2.80 700 units @ $3.00 900 units @ $3.10 500 units @ $3.20 2,100 units @ $4.70 Determine the amount of gross margin assuming the weighted average cost flow method (Round your intermediate calculations to 2 decimal places.) Multiple Choice