Ghosts in the Machine

Back to the Odeon Steps for this one. I'm not quite sure why I haven't done this before.

I spent far too long trying to explain to people who really ought to understand these things that 12.5% of £5,500 is considerably less than 100% of £7,900 and that the former was a much more advantageous deal than the latter. It took about 45 minutes before the realisation set in. I am not joking.