Thanks Skyscanner, appreciate the effort.
There you have it, at $100 US per barrel
158.987 litres per barrel = $0.629 per litre, divided by av SG 0.79 = $0.796 per Kg
=$796 per tonne
Total fuel burn for the sector:
777 $80,078,
744 -$106,505
=$26,427 per sector additional fuel burn to carry ~same pax load on the 744.
Tech crew costs are a piss in the ocean compared to the additional fuel burn of the 744. This is why QF is uncompetitive, the equipment, not the tech crew.
More data burn/pax load would be appreciated.