I cannot determine the FIFO, moving-average, and LIFO

Wildhorse Co. began operations on July 1. It uses a perpetual inventory system. During July, the company had the following purchases and sales. Date Purchases Units Unit Cost 13 $54 Sales Units 10 9 $58 July 1 July 6 July 11 July 14 July 21 July 27 9 12 $62 11 (al) (a2) Determine the ending inventory under a perpetual inventory system using (1) FIFO, (2) moving-average, and (3) LIFO. (For calculation and answers purpose round unit costs to 2 decimal places, e.g. 15.25 and ending inventory values to 0 decimal places, e.g. 515.) FIFO MOVING-AVERAGE LIFO The ending inventory under a perpetual inventory system $ $