I have been doing some advertising on fb and cannot figure out why my cpc is so inconsistent day to day. When i first started my bid was $1.24 (fb recommended) CTR was always a .150 or better. and my cpc was ranging from $.12 to $.20 Recently my ctr has stayed at a steady rate around .210 ish but for some reason my CPC has skyrocketed to $.70-.80 I cannot figure out how to get my cpc back down to where it was. I figured since it was the holidays that advertisers are buying up spots, so my bid will go up as well. Does anyone else have any suggestions?