Hello ! Any one know . Why Google make low earnings this day ? first i can make $21 - 23 from 700 clicks - now i'm make $15 - 17 from this clicks !
It depends upon many factors. One to what i know is the traffic quality and the traffic way of reacting when they reach on advertisers website. If the advertisers are not getting what they think they should then your CPC will surely be going to land down.
And economy reasons. Plus its maybe a seasonal thing and advertisers are busy. I'm sure it will pick up after the new year.