Intelligence Contest #4 - Win 100% of the SBD + Free Votes

A new way to win SBD and Votes! Win my new Intelligence Contests!!! I will be posting them everyday at random times and you can win 100% of the SBD this post makes + you will get my upvote. (I got 13 SP + Starter-delegation, so it's over 1 cent!!!)

I have and will not have copied any of the puzzles I post from other websites. They are unique, so you can try using google, but you ain't gonna find the solution by simply clicking "Search this image on google". Just wanted to make that clear :P

You win if you are the first to comment the correct answer in the comments.

RULES:
-Upvote this post
-Comment your answer
-Do not edit your comment
-1 answer per comment
-No spam

Question

John found a little puzzle. He was bored, so he decided to solve it. He couldn't so he needs you to help!

John needs to figure out the number that should replace the "?". What is this number?

If you liked this contest, please Upvote(required to win prize), Resteem(not required) & Follow (For more!)