I have a stock in an account that has the wrong cost basis versus the broker cost basis. This goes back many years and many buys/sells. I want it to match the broker issued cost basis. If I do a return of capital transaction with a negative value, the cash balance of the account is changed. The investment account has a linked cash account. I.e. abc.investments + abc.investments-cash. Also the return of capital dialog box has the account and transfer account greyed out. You can only input the dollar value. The transfer account greyed out is the abc.investments-cash account.
How can I make the cash balance unchanged while adjusting upward the cost basis of the security?