[GNC] Automatic capital gains question

[Jon Schewe]

I've been tracking my investments in GnuCash for some time, however
haven't been using the capital gains features to track gains and
losses. I recently spent time reading the sections of the manual about
what accounts to create for gains and losses and how to use the lots
feature to scrub an account to determine gains and loses across
multiple transactions. I've now tried it on one of my investment
accounts where I purchased shares over multiple transactions and then
eventually sold all shares over some amount of time. So the balance in
the account is currently zero. I tried using the automatic gains
feature and am left with a question about the value of the gains. In my
mind the gains/loses should be equivalent to me adding up how much I
paid for all shares and subtracting from that how much I sold all
shares for and that tells me my gains. I compared that with what shows
up in my capital gains account after the scrub and they don't match. Is
this expected and I'm not understanding something about how GnuCash
computes capital gains?

Jon