Seminole Company record of transaction for the month of January 2019 was as follows

Date	Purchased in units	Rate $	Date	Sales in Units	Rate $
01-01-19	600	6	03-01-19	500	10
04-01-19	1500	6.8	09-01-19	1300	10
08-01-19	800	6.4	11-01-19	600	11
13-01-19	1200	6.5	23-01-19	1200	11
21-01-19	700	6.6	27-01-19	900	12
29-01-19	500	6.79

Assume perpetual inventory system to record above transactions with the use of following methods.

1. FIFO
2. LIFO
3. Average Cost