Clicks have lower value

i got this site wallpaper sites,i was experimenting with adsense ...before i always had around 100 clicks a day and 10 dollars a day earnings = 10 cent a clicks.
Now i have between 300 and 500 clicks a day and i earn 15 dollars a day which is about 3-5 cents per click.
Now what i want to know how is it possible the value of a click dropped to 3-5 cents?

 

Smart Pricing. When Google thinks your ads don't make money for the advertisers, they will smart price you which means they lower the CPC of your site.

 

unfortunately profits dont grow proportionaly as traffic grows

 

yea mine was same but today increased

 

try remove the ads for 2 - 3 days, and then put again. Or change to YPN, msn adcenter, etc;

 

You can also try to remove some ads, keeping only one.
Google should show the one with higher CPC.

 

but if i do that will google smart price me again after a little time?

 

what is Smart Pricing?

 

By the way if i have less ads on a page ,will the value of a click be higher?

 

no if u have 1 box itll be same pricing as if someone clicks on the first box (if u have 3 on page)