Sales numbers are not in dispute, its costs & breakdowns that are questionable.
Costs are not questionable (unless Kaz is not a valid source):
http://www.gamasutra.com/view/news/...urismo_5s_Development_Cost_Hit_60_Million.php
And that's circa 2009, and as such doesn't cover the cost of updates and DLC.
In regard to breakdown, that's exactly why I have been clear from day one on this that the figures I'm using are indicative and approximations.
So at the risk of saying it just for the cheap seat. If I had claimed these to be 100% accurate you would have a point, but I didn't, so you don't.
Its also odd that you are still focusing just on figures that are clearly presented as approximations (and have had sources shown and calculations transparently detailed), yet continue to give a pass to the absurd. Given that I guess you must be OK with a claim that PD made enough money on the PS3 from GT5 (and derivatives) to develop for 20+ years without releasing anything.
You cant discount Sony's cut as publisher when some of the production cost (licensing etc) would be Sony's. Also, PD staff are paid by Sony, not PD.
Citation required.
You make a big deal about assumptions, yet you give yourself a pass on them.
Edited to add: I've just checked and PD are a subsidiary of Sony, which would make them (under normal subsidiary terms) a separate business entity from the parent. As such it would be highly unusual for the staff to be paid from the parent company. As such, while Sony will be the majority holder in PD, the company itself would act fairly independently, and certainly would be independently accountable from a financial perspective.
Edited again to add:
From Sony's own site:
Polyphony Digital Inc. is a subsidiary of Sony Computer Entertainment Inc. Polyphony Digital began as a development team within SCE, but became an independent company in 1998, the year after the release of its first title, Gran Turismo.
Source -
http://www.worldwidestudios.net/polyphony
As such the model and breakdown I've presented will be the closest to reality. Sony may well inject funds into the business, but PD will then have to balance the books, will take a profit share (as per my breakdown model) to be able to run the business, etc.