Sorry, but I have read the documentation and several entries on the board and I still can't make this work.
BEP spun off BEPC. They did it with the equivalent of a 5-for-4 stock split, with all the new shares in BEPC. This is a tax-free transaction. It's only purpose was to create standard C-Corp shares (BEPC) each of which will receive dividends equivalent to a unit in the original MLP (BEP).
THe original shares were bought in a single transaction. I entered 1/5 of the total cost of that transaction (minus various ROC distributions) as the cost basis of the new shares. I expected the Ave. purchase price of all shares (BEP and BEPC) to now be the same, namely the total cost basis divided by the total number of BEP and BEPC shares. The value shown in my report is as expected (24.04) for the new shares, but the cost of the old (BEP) shares was not adjusted (is still 30.96).
The transactions added by the wizard for BEP are:
For BEPC: