My August reporting interface in the Dashboard as well as detailed reports show I earned a specific "estimated earnings." Those 2 numbers are the same.
However if I look at finalized earnings for August, the amount is almost $300 less. There is one line item for 63 cents being deducted for "invalid clicks". Other than that, there is no explanation of why I'm being paid $300 less than daily reports showed me for the month.
I've been doing Adsense for a very long time. I've never seen this before. Anyone else notice any discrepancies for this past August? I'm thinking it's a glitch - but haven't gotten any response from Google. :(
estimated earning is just estimates. They have done end of month processing and take out invalid clicks such as IP or clicks that they deem accidental. That's about all they'll tell you.
We all have amount taken off to some degrees and that number differs from month to month.
Check out the "finalized earning" thread on this subforum and you can get a handle on how you are faring in terms of earning shave.
Most people get shaved within 0~5% range but it can sometimes get to 5~10%, and in some very extreme cases 20~30%.
What % of your total earning is that $300? If it's less than 10% I wouldn't worry, but more than you may have to dig deeper to see where that came from. Consistent high % earning shave may mean that you have a significant portion earned due to invalid clicks for whatever reason, and that is some red flags for both you and Google.