Earlier quoted context omitted.
> If the government wanted to buy another one, the contractor would have charged them an extra $435. This claim appears to contradict what the story says, as far as I can tell? He's the original: > The military bought the hammer, Kelman explained, bundled into one bulk purchase of many different spare parts. But when the contractors allocated their engineering expenses among the individual spare parts on the list-a b…
Sometimes what's written on paperwork can be silly because it doesn't really matter and the cost to verify or correct stuff that is estimated costs more than an estimate. Other times it has to be more precise than is possible, so you have to figure out a good way to "estimate" it. Being inaccurate isn't always problem if the costs outweigh the benefits of being accurate.
You're speaking of public money; the cost of inaccuracy is much greater than the amount of the inaccuracy itself, it erodes public trust.
Also, the difference between $15 and $600 can't be described as an "inaccuracy".