How are the numbers derived?
Despite your very poor remark in a sibling comment, I will respond with benefit of the doubt that you're just unhappy with the message and don't intend to be a prick.
You ask how are the numbers derived? Well, the numbers are not derived. My point is that an equilibrium exists where business is happy to pay y/x for 99.99 instead of y for 99.999; what is the actual value of x depends on specific enterprise and markets. What we know is that such x is no longer long term, let alone a theoretical proposition, but something approachable in the short term.
So to answer your question. The numbers are not derived.