Inventory data for Sheridan Company are reported as follows. Assume a sale of 670 units occurred on June 15 for a selling price of $12 and a sale of 410 units on June 27 for $9. (a1) (a2) (a3) Your answer is incorrect. Calculate the cost of the ending inventory and the cost of goods sold for each cost flow assumption, using a perpetual inventory system. (Round average-cost per unit to 3 decimal places, e.g. 12.520 and final answer to 0 decimal places, e.g. 1,250.)