Unposting Payments that have tons of subsequent activity.

Is there a way to determine how many subsequent payments, transfers, worksheets have been done, and will need to be unposted before you start down this path?  I know unposting one by one, as they are identified online in PeopleSoft is the recommended process, however I have an instance where I have unposted 150 transactions, and I am looking for a way to determine how many more there could be.