Required information The following information applies to the questions displayed below) The inventory records for Radford Co. reflected the following: 1 Beginning inventory May 1 First purchase @ May 7 Second purchase May 17 Third purchase May 23 Sales & May 31 , 600 units 1,700 units 1, 900 unit 1, 500 units 5.100 units 13.00 05.00 @ $5.10 05.20 16.70 What is the amount of gross margin assuming the weighted average inventory cost flow method? (Round your intermediate ce 1 Multiple Choice 0 $7650 0 O $26.520 0 $8.517 0 $18,360 N