can someone please help me on how to do a2? thank you

Kingbird, Inc. began operations on July 1. It uses a perpetual inventory system. During July, the company had the following purchases and sales. Purchases Date Units Unit Cost Sales Units July 1 12 $60 July 6 10 July 11 8 $65 July 14 8 July 21 10 $70 July 27 9 Calculate average cost for each unit. (For calculation and answers purpose round unit costs to 2 decimal places, eg, 15.25.) July 1 $ 60 July 6 $ 60 July 11 $ 64 July 14 $ 64 July 21 $ 69 July 27 $ 69 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, es. 15.25 and ending Inventory values to decimal places, eg. 515.) FIFO MOVING-AVERAGE LIFO The ending inventory under a perpetual inventory system $ $ e Textbook and Media List of Accounts Save for Later Attempts: unlimited Sun Anwar