You have to remember that of the $2.5 billion, almost all of that was spent on materials and labour building the new trains. 5% of the total cost as a performan

You have to remember that of the $2.5 billion, almost all of that was spent on materials and labour building the new trains. 5% of the total cost as a performance guarantee will be a very significant, or perhaps even total part of the profit the supplier expects to make on these trains.