75% feels right. If the answer had been anything outside of 65%
   - 80%, I would've been surprised. I deal with estimations all of
   the time, and it's important to be able to come up with ranges
   of potentials rather than exacts.

   Is it math? Probably, but don't ask me to show my work. I hated
   showing my work because that kinda ruins it. It's more like
   visualization rather than the scribblings of 18th century
   madmen.