Division of resources into projects in GCE is great. It not only makes for cleaner administration in the console, but provides simple itemisation of costs on a per-project basis. Or, rather, it ought to. GCE has the data but, as ever with billing systems, the developers and product designers apparently got bored when it came to this aspect of the UI.
What we’re having to do at the moment is go to the transaction history; export it as CSV; and then run that through a parser which establishes the project and the type of cost (VCPU, bandwidth etc) for each item. We do now have a report which shows us our costs by project and/or by category, but GCE ought to provide such a report itself.
Thanks for your feedback, we’ll share it with the billing team.