Current Attempt in Progress Ivanhoe Company uses a periodic inventory system and its accounting records include the following inventory information for the monthof July: A physical inventory count determined that 620 units were at July 31 . (a) Calculate the ending inventory and the cost of goods sold under (1) FIFO and (2) weighted average, (Round the weighted average cost per unit and final answers to 2 decimal ploces, e3. 5,275.75.)