If the transaction was performed the same day, reverse using Tool #31 Reverse Tran/Adjust Tlr Drawer (Same Day) and then rerun transaction correctly. 

If the transaction was performed on a previous date, reverse using Tool #354 Effective-Dated Transfers.  CU*BASE will automatically adjust the dividend/interest amounts for you. If you want to be able to override the dividend/interest amounts, use Tool #353 Effective-Dated Account Adjustment instead.