I'm using Accounting 1&2, Warren, Reeve, Duchac 25th ed.
Second purchase is 75 units at $440 not 77 units.
There is a green side note to the left of the question with a check mark b. $22,000. I'm not sure what other information you need, but I will keep looking.
Did this include the calculation of the cost of each individual sale separately using LIFO procedures? Thank you for your help!