can you explain how you got answers

Pharoah Company began operations on July 1 . It uses a perpetual inventory system. During July, the company had the following purchases and sales. Determine the ending inventory under a perpetual inventory system using (1) FFO, (2) moving-average, and (3) LIFO. (For calculation and answers purpose round unit costs to 2 decimal places, eg. 15.25 and endins inventory values to 0 decimal places, eg. 515