Ivanhoe Co. began operations on July 1. It uses a perpetual inventory system. During July, the company had the following purchases and sales. Date July 1 July 6 July 11 July 14 July 21 July 27 (a1) Purchases Units 5 6 7 Unit Cost $138 $152 $163 Sales Units 3 5 5 Calculate the average cost per unit at July 1, 6, 11, 14, 21 & 27. (Round intermediate calculations to O decimal places and final answers to 3 decimal places e a $105.501) (a1) Calculate the average cost per unit at July 1, 6, 11, 14, 21 & 27. (Round intermediate calculations to O decimal places and final answers to 3 decimal places, e.g. $105.501.) July 1 $ Average cost for each unit July 6 $ July 11 $ July 14 $ July 27 July 21 $ $ eTextbook and Media (a2) Determine the ending inventory under a perpetual inventory system using (1) FIFO, (2) moving-average cost, and (3) LIFO. (Round average-cost per unit to 3 decimal places, e.g. 12.520 and final answer to O decimal places, e.g. 1,250.) The ending inventory under a perpetual inventory system eTextbook and Media $ FIFO $ MOVING-AVERAGE $ LIFO