I second that.
Currently it isn't saying much. I don't know how much gold I gained while playing or lost by upkeep. And that because trades are in as well. I often play alt characters, gain gold on them and send it to my main for marketplace trades. And those are included as well...
For me it currently looks like this, yesterday I gained over 800k because of a trade and some gold I transfered to my main from alts:
Would be great if MarktpLatz' suggestion can be looked into.