I asked this earlier but I think it may have been over shadowed by other discussions. I think it's a valid question, at least for my education.

I look at cost per pound as a trailing indicator because it cannot be accurately calculated until the quarter, year or decade is over (not sure when they calculate it). With this said, how can a company put a number to something that is 4-5 years away???

Isn't copper cost per pound a little misleading? With the constant changes of labour costs, fuel cost, hydro costs and the changing price for the metals themselves. Are these numbers adjusted on a yearly/quarterly basis? I could see them hedging the metal prices (probably not a good ideal for now) but the other cost are impossible to accurately plan ahead for. So how can you really know what the cost per pound would be years down the road.

Can anyone shed light on this, if I am looking at this all wrong please let me know, I am getting caught up on this, probably due to my lack of knowledge on it.