The Inventory records for Radford Company reflected the following: Beginning inventory e May 1 1,600 units $4.80 Tirnt purchase May 7 1,700 units # $5.00 Second purchase e May 17 1,900 units $5.10 Third purchase May 23 1,500 units + $5.20 Sales & May 31 5,100 units ? $6.70 What is the amount of gross margin assuming the weighted-average inventory cost flow method? (Round your intermediate calculations to two decimal places.) Multiple Choice $18,360 $7650 $26,520 $8,517