The inventory records for Radford Co. reflected the following:

Beginning inventory @ May 11000 units @ $3.60First purchase @ May 71100 units @ $3.80Second purchase @ May 171300 units @ $3.90Third purchase @ May 23900 units @ $4.00Sales @ May 313300 units @ $5.50What is the amount of gross margin assuming the weighted-average inventory cost flow method?(Round your intermediate calculations to two decimal places.)

$5511$4950$7920$13,200