I think WeiTuLo was trying to point out that you also get supplies/crew/fuel as part of that cost.
The production of a Paragon cost me 543.7K (+43,700 additional credits), but it came with:
-1160 Fuel (@25 credits each that is 29,000 credits worth)
-860 Crew (@50 credits each that is 43,000 credits worth)
-270 Supplies (@100 credits each that is 27,000 credits worth)
Even selling at the local market at my colony at less than the standard cost and with a 30% tariff I still can make back ~54K, covering the additional credits and then some more. Selling all the randomly equipped weapons nets a further 15K (local market with tariffs included). I worked out the same thing in this thread but with Apogees here:
https://fractalsoftworks.com/forum/index.php?topic=20999.msg318860#msg318860I actually would like the feature to build blank ships for a flat 500K, but if that meant no longer recieving the hugely discounted fuel/crew/supplies as part of the package, I would be losing more money on ship production.