I don't doubt the numbers are way off.
The point I was trying to make, though, was that even if all subscriber only purchased the lowest price plan, 15,000 subscribers would be enough to cover the cost of operations and make GZFX profitable (as opposed to 72,000 subscribers being required as another poster suggested).
Of course, if we had more information (i.e. % of subscribers in each plan, % of churn, etc.) we could make a more realistic calculation.
jimh