look up any word, like sex:
The price of a sellable item (highest at which it can be sold at) less the cost of bringing it to the point of sale (repairs, delivery etc.)
The computer is worth £X, but repairing it will cost £Y, and delivery costs and admin will be £Z.

Net realisable value is £X-(Y+Z)
by Kung-fu Jesus July 06, 2004