Could it be a CPM ad?

Might also be a lag in the stats, wait a few hours and then let us know?

Although 1 cent is the lowest amount for a click, Google takes its own percentage which in this case is 50%. 50% of 1 cent is 0.5 cents (or half a cent).

They get this for:-

hosting the ads
sorting out which ads to show
collecting the money from the advertiser
paying the publisher
other stuff

Obviously if you arrange ads yourself on a site you get more of the take. Generally % payouts vary with Google from ~ 50% up to 100% (although this is extremely rare). It all depends on how much your site costs Google.

Hey,

on what does the cost google has with your site depend?

In my eyes this sounds like VERY bad.

may be that the click stats updated before the earnings.