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The inventory records for Radford Company reflected the following: Beginning inventory @ May 1 First purchase @ May 7 Second purchase @ May 17 Third purchase @ May 23 Sales @ May 31 1,000 units @ $3.60 1,100 units @ $3.80 1,300 units @ $3.90 900 units @ $4.00 3,300 units @ $5.50 If the company uses the weighted-average inventory cost flow method, what is the average cost per unit (rounded) for May?

The inventory records for Radford Company reflected the following: If the company uses the weighted-average inventory cost flow method, what is the average cost per unit (rounded) for May