Pretty much the title. I am putting together a "game plan" for my CEO, where I would like to touch on the difference in CTR between SERP organic results and SERP PPC results. I've found a few blog posts that talks about PPC being responsible for 15% of all clicks, where 1-5 organic results are responsible for 68ish % and the rest being on 6-10 and page 2/3. However, I do not see any sources in these articles, which begs the question, where are these numbers taken from? Any suggestions?
My own gut feeling (and SERP behaviour) tells me that these numbers might actually be super accurate, but since my business plan will most likely end up in the hands of our board of directors, I would very much like to back up my action points for growth, with actual sources.
Thanks in advance.