Google recently announced a partnership with Owox’s data importer for analytics making it available for free. Specifically you can now import costs, or other data pretending to be costs such as number of event attendees, to compare in google analytics.
You can get the importer from the chrome store here. And read more about it on the owox site here.
For example, if you are using Google Grants for Nonprofits you could similarly export Tendenci’s event registration dollars from your site and import that for further analysis. Lots of possibilities.