The balance on the Activity tab is the balance that will print on statements and reflects the current balance for the record.
If the cached balance does not update after a reasonable amount of time (within 1 business day), take the following steps:
- In Plug-Ins, click Update Cached Record Balances
- Mark the Run plug-in checkbox
- Click Update
Try adding a new charge to the record. Do not post the charge. Then delete the new charge - this may trigger a refresh of the record balance.