My average CPC was originally .21 cents and my CTR was .110% now my CTR is .140+% and my CPC has been gradually rising for the past week and a half. It's now up to .33 cents obviously at this rate I won't be profiting for much longer does anyone have any idea how I can get my avg CPC down? BTW the suggested bid is 31-50 cents and my bid has been at .51 and has never been changed.