The inventory records for Raymond Co. reflected the following

Beginning Inventory @ May 1	200 units @ $1.00
First Purchase @ May 7	300 units @ $1.10
Second Purchase @ May 17	400 units @ $1.20
Third Purchase @ May 23	100 units @ $1.30
Sales @ May 31	900 units @ $1.50

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.)