WDS too cheap?, page-329

I agree with you Pretzel, some very large expectations.
My calculation were pretty simple, roughly the same sales revenue for the first 6 mths as there was for total of last year - US$7B (A$10B)
Total dividends paid last year was US$1.35, so halved it for 6mths - US$0.675 which is roughly A$1
Only 6 mths worth of expenditure incurred, higher oil price so guessed A$1.30

As per Adimadis's list of predictions, Commsec was at A$1.93.
From my back of envelope calculations, for that to be correct on A$10B sales revenue:
Net profit on A$10B sales revenue needs to be A$6.6B
NPAT would be A$4.62B
80% paid as divvy A$3.7B
1.91B shares equates to A$1.93 dividend

Is WDS that much of a cash cow that on A$10B sales revenue, they can make A$6.6B net profit?? Is my math's wrong?