My cpc fluctuate so much, I sometimes gets 50 to 80 cents and some times get 4 cents ,WTF......... At then end of the day i see my average cpc for the whole day is just 20 - 25 cents, Is anybody also experiencing this type of fluctuation in cpc ??????????
There must be keywords that are triggering it that differ greatly. This to me would be a sign you need to focus your content a bit more towards those keywords that are generating the high CPC.
It may just not be the keywords everyone forgets the other part of the globe in which we live in. If traffic comes from asia do you get the same amount for clicks hell no we do not, if 100% of your traffic is from the USA then yes i would say it's the keywords. Even traffic from the united kingdom and Canada does not pay as much as USA.
thats the nature of the game. you get paid based on how much advertisers pay for the click. different advertiser pay different for ads based on their account history, CTR, and site/ad quality score. so for the same ad position, different adwords advertisers pay different. one might pay $1 for a click where other with great QS, CTR, and good history might end up paying $.30 or so for the same click/spot. thats why the rate flactuates so much