I have what I thought was a clean model of a shot glass made from seven circles of 32 vertices each. The inside and outside 'bottoms' converge to a single vertex. That should make it 226 vertices in total however it reports there to be 227 vertices. I have 'removed doubles' but cannot find the extra one. What am I missing?
For some tedious tasks, Blender has nice tools built-in. One of them is hidden in the
Select menu, and is called select by trait. It offers selecting mesh items based on certain criteria. In your case, the additional vertex might be a stray one floating around in space.
To locate that vertex: Make sure you're in Vertex selection mode, then run the command from the menu: Select > Select All By Trait > Non-Manifold or Loose Geometry. Potentially that vertex is off-screen, so hit . on the Numpad to view it.