It's very odd to me that historically I'll have around 1% shaven every month and for August it shoots up to 10%. My traffic and traffic sources have been very steady for awhile now. I wish Google was more transparent in how they determine finalized earnings.
Don't mean to gloat and (knock on wood), our average end-of month deduction for the last three months has been one cent per month. The month prior it was in the range of 2% of estimated earnings which was a shocker. G seems to hit us with a minor negative adjustment about every three or four months. Five months ago though, they credited us a penny. Wow, the wonders of rounding. I am noticing more real-time adjustments though and because I don't sit and watch my account, who knows what the monthly tally is for that activity because, unless you catch it in real time, it's like it never happened. In some ways I suppose, it can be less disappointing though than to have big chunks taken away in one fell swoop.