The inventory records for Radford Company reflected the following:

Beginning inventory @ May 1 800 units @ $3.20

First purchase @ May 7 900 units @ $3.40

Second purchase @ May 17 1,100 units @ $3.50

Third purchase @ May 23 700 units @ $3.60

Sales @ May 31 2,700 units @ $5.10

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 $9,720 $4,050 $5,400 $4,509