I own a website which brings leads to local dentists. I'm located in Canada. Now my question is, how much should I charge the dentist per lead/call made by a potential patient. When I go to the dentist here every 6 months, the final bill easily ends up being between $450-$800 which only includes cleaning and all the very basic stuff. I was thinking about $30 per call they receive. I don't know why I came out with this number, but it was pretty much the first number that came to my mind. What do you guys think ? I'd like to hear some suggestions.