How much referral traffic do you receive on your site?

The social media traffic is generally referred to as referral traffic. What percentage of traffic on your site comes from social media? Some of my sites receive 100 percent referral traffic and some of my sites have at least 10 percent referral traffic. I mainly receive traffic from Facebook, Twitter and Pinterest. I also sometimes receive traffic from Youtube and LinkedIn.

Mostly I receive traffic from pinterest and Quora, I write on an average 7 articles there and I insert my website links in 3 articles or answers.

Most of traffic comes from forums and answer sites where I embedded my links. I can state categorically because the traffic don't use to static, on average I receive 2300 traffic monthly,,which is very poor.