You are getting upto $4 a day one day your earnings increase to $26 you are doing in right way just you got 22 clicks $26 it will happen normal if you have good content so need not worry about your adsense account
Niche is means 'topic'. What's the niche of your site, simply means what the topic of your site it. Regarding 26 clicks = 22$ when usually you get $3-4 per day sounds that you should be alert. How many clicks did you get when your income was $3-4 per day? around 26 clicks as well? If so, then it's fine, I guess. Because that's purely because of your niche.
hey, what is niche ? come on bro, $26 per day and niche you donno ?? i think u're playing funny here man...hehe
it is normal, if it was invalid click, that will not charge as much as this. cuz first click charge more, and if same one click next it charges less. i didnt exprience this, but i read this somewhere in dp.
Consider yourself very lucky because I am getting a meager $1.5 to 2.0 for the same number of clicks. It seems there is a sudden change in the paying capacity of your niche