Problem 6-9a | Accounting homework help

Problem 6-9A 
Farman Appliance Mart began operations on May 1. It uses a perpetual inventory system. During May, the company had the following purchases and sales for its Model 25 Sureshot camera.
Purchases Date Units Unit Cost Sales Units May 1 210 $153 May 4 120 May 8 240 $173 May 12 150 May 15 180 $188 May 20 90 May 25 120 
(a1) Your answer is correct. Calculate the average cost per unit at May 1, 4, 8, 12, 15, 20 25. (Round answers to 3 decimal places, e.g. $105.252.)Average cost for each unit May 1 $ 153
May 4 $ 153
May 8 $ 167.545
May 12 $ 167.545
May 15 $ 177.772
May 20 $ 177.772
May 25 $ 177.772
Please answer the question below: (a2) Determine the ending inventory under a perpetual inventory system using (1) FIFO, (2) moving-average cost, and (3) LIFO. (Round answers to 0 decimal places, e.g. $2,150.)
The ending inventory under a perpetual inventory system $ $ $ 1) FIFO 
2)MOVING-AVERAGE 
3)LIFO 
Please answer the a2 question.Thanks!