adsense cpc fluctuations?

DanielQ

New member
Jun 29, 2008
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A police state.
I'm posting this here since it's probably a newb question/I'm probably just overlooking something?

Yesterday and today my adsense earnings have been fluctuating from a average cpc to a very low one, resulting in a drop or rise in earnings by 70-90%, throughout the day. CPC drops to very low for no apparent reason.

This is happening during the same day. I'll check my earnings, they look fine, then I'll check them 2 hours later and they've dropped 70ish percent. What's up with that? I know earnings fluctuate, but this seems extreme, and is a completely different trends from what i've seen historically. The past day or two I've had significantly lower earnings than usual at the same time I began noticing this.