Impression question

I don't get it. Why i got 2 different site: 1 with higher CTR and higher CPM but it get the same earning compare to a site with low CTR and low CPM but higher impression?

Does that means high impression will increase earning as well? If thats true then those people who refresh their page alot will get higher earning?

 

Are the two sites about the same topic?

 

I'm not too sure about this but impressions matter. A friend who often gets below $1.00 eCPM but 5,000 impressions seem to earn more than me. My eCPM is much higher than him, but impressions are quite low.

 

I even don't know how they affect my income.

 

Your earnings are based on many factors, of which, impressions is one. There's a simple formula, which you can discover by typing Adsense formula on Google.

http://www.google.com/search?q=adsense+formula

 

Here's the formula

earnings = page impressions * ads per page * click thru rate * average price per click