I believe the number up up votes is next to the time it was posted. If there are any down votes then the the number of up votes and down votes are shown next to the up and down arrows respectively and in this case the number of votes are subtracted and shown next to the time posted.
If the number of upvotes is the same of the sum of the votes (top right corner), you won't see nothing. If there is at least a down vote, the number of upvotes and the sum of the votes will differ and you will see the count next to arrows.