Some of the information found on a detailed inventory card for Cannery Ltd. for May is as follows:

From the above data, calculate the ending inventory based on each of the following cost formulas. Assume that perpetual inventory records are kept in units only and average cost is calculated monthly at each month end.

Received Issued No. of Units Balance No. of Units 1,230 2,350 1,600 2,240 1,700 2,430 1,230 2,630 1,780 3,380 1,980 Unit No. of Units Date Cost $2.90 3.00 May 1 (opening balance) 1,230 2 7 10 13 18 20 23 26 28 31 1,120 750 640 3.20 540 320 1,200 1,050 3.30 1,400 850 1,600 3.60 1,400