I think the $464 mill are just the contracts that ISX can confirm they lost (only for 5 years) - all the other contract amounts would be something like ... spitballing - no proof therefore not totally admissible in a legal context.
the reputation damage - how can we put a dollar figure on that accurately? there will be some sort of equation, but i think it would be a conservative guess at best - missed opportunities, withdrawn contracts or tenders that they couldn't submit , expansion opportunities, mergers, acquisitions.