I am writing a custom report for node availability which is easy enough to do with the report writer. The part that I am looking for some guidance on is at the end of the report I want to add a line to average ALL of the nodes availability so it can be part of a monthly management report. Thanks for the help!
I would suggest using the web report writer and simply adding an additional table (add content button) that has the full summary information on it. There's not a good way to run it all in one table outside of taking your raw data into excel and then doing your math outside of the report, so to speak.