I think you have to make costs - unit operating costs (CIF) -...

I think you have to make costs - unit operating costs (CIF) - because that include royalties and a few other things
But unit operating costs (CIF) varies a bit from report to report due to royalties and the spod price, so I would be happy to replace US$564 with $514 and redo the calculations.
HoweverI was told by a poster who appeared to be more knowledgeable than myself, that you need to include All In Sustainable Costs eg maintenance of equipment, exploration costs etc and that these additional costs add another 30% to unit operating costs (CIF)

here is All In Sustainable Costs explained
Also I don't think the spod price should be US$1,100
Most analysts and myself included think it should be around $1000 and that indeed is where it is at the moment ... $1,047
If we can agree then on a cost figure and the spod price I will do another calculation and we can really get some idea what PLS is worth.
then we can redo the valuation again ( using PEG=1)
fair value will probably increase about 8% to $3.80