Required information The inventory records for Raymond Co. reflected the following Beginning Inventory @ May 290 units @ $1.40 First Purchase @ May 7 460 units @ $2.00 Second Purchase @ May 17 480 units @ $2.00 Third Purchase @ May 23 260 units @ $2.10 1,300 units @ Sales @ May 31 $2.30 Determine the amount of gross margin assuming the weighted average cost flow method. (Do not round average cost per unit and round your answer to the nearest whole number.)