i'e notice that when my site is having lots of impression..... the earning decrease compare to the day where there is less impression and equivalent clicks..... i really dont understand....how it works
i guess its normal. if your visits number is too small, the CTR might not accurately describe your site performance. you need a very large sample to make the CTR more meaningful
First , you have to take a look at your niche.. Maybe your niche not high paying keyword.. Then, you have to check out your traffics.. Basically, even you have niche blog, but less of traffics, you will get smart pricing...