Actually it was $535 million (11% of $5 billion); it is projected that about $140 million will be recouped in the bankruptcy proceedings for a projected net loss of $395 million.
Regardless of any monetary recovery, it is a significant amount anyway. But to put it in prospective, the government loss on the General Dynamics A-12 program was a $2billion loss when cancelled by (then) VP Dick Cheney.
