You have two options for producing this result.
Create a new layout based on accounts. You can get totals on these fields either with calculation fields defined in Accounts like this one:
Sum ( Transactions::credit )
Or you can define summary fields in Transactions that compute the "total" of the Credit, Debit, and the total of cBal, a calculation field defined as Credit - Debit. In this case, you put the summary fields from transactions directly on your report layout. (Do not use the running balance summary field for this.)
Use the summary fields described above, but on a layout based on transactions. Remove the body layout part and add a sub summary layout part "when sorted by" Account ID. Put the summary fields, as well as the account ID and the name field from Accounts in this sub summary part. Make sure that you sort your records by AccountID or the layout will be blank.
Option 1 may be best if you only want a grand total for each account. Option 2 can be a better option when you want a report of account totals for a sub set of the total records such as all transactions taking place in a given range of dates...