Jalloh Companys record of transactions concerning part X for the month of April was as follows.

Purchases	sales
Purchases April 1 (balance on hand) 350 @ $6.60	April 5 550
April 4 650 @ 6.73	April 12 450
April 11 550 @ 7.00	April 27 1,300
April18 450 @ 7.06	April 28 150
April 26 850 @ 7.39
April 30 450 @ 7.66

Compute the inventory at April 30 on each of the following bases. Assume that perpetual inventory records are kept in units only. (1) First-in, first-out (FIFO). (2) Last-in, first-out (LIFO). (3) Average-cost.