You pick these terms!! utbyte is yield in both financial terms and in production terms. In financial terms, this is as Norskpro suggests, 'lost profit'. Production yield has to do with effort and material input compared to what you get out of it.
In your sentance, the reference to 'legovalsning' suggests that the loss here is in production terms -- the one company (buyer?) had to 'redo' or add a production step because the other party (seller?) didn't manufacture the ordered product correctly which is a loss of production yield. Which, of course boils down to a loss of profit.

This possible can go the other way -- which asks for more context.

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Note added at 28 mins (2013-06-18 12:39:58 GMT)
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Some reading form this http://en.wikipedia.org/wiki/Design_for_manufacturability#Ta...