It is higher than I expected. Looking at some of my sites' AdSense EPC numbers compared to what I've spent on AdWords for the same sites, I knew it was more th

It is higher than I expected. Looking at some of my sites' AdSense EPC numbers compared to what I've spent on AdWords for the same sites, I knew it was more than 50% but less than 75%. I figured it was a sliding scale based on traffic and clickthrough rates, but I guess I was overthinking it.