Blaess and Adele ferguson believe the companies have not gone...

Blaess and Adele ferguson believe the companies have not gone far enough with asset writedowns,given the uncertainty in global markets,i am not surprised that claim has surfaced.

What i find difficult to work out is the 'calculations' Blaess arrives at to make his claim.From what i can gather from the article,they use the share price (the market) which implies what asset correction SHOULD be,as share price is dependent on many variables,on its own , that would be just plain stupid , and there must be many other factors in Blaess's 'calculations', but until you know how this calculation was made, they can say anything they like,as you say, what calculations?