eCPC AFS lower then AFC

Why?

[Mikey85]

Hi,

When I see my stats I see that the eCPC of AFS is 50% (!) lower then the AFC eCPC!

Do you have the same problem?

Is there anything to do about that?

[koan]

There isn't an acronym I recognize in that post.

[Rodeo]

Adsense For Search and Adsense For Content.
You get more clicks for AFC than AFS (normally). So a few low cpc clicks will be covered up by a few higher cpc clicks in case of AFC.
But for AFS, since there are (much) lesser number of clicks, you may end up a day on a lower avg cpc and another day with a higher avg cpc, higher than your AFC sometimes.