They haven't been known for the accuracy in costings. Refer to the link I posted earlier to day which you tried to spin off...lol
And their carbon tax affect on electricty was way out in our case - our bill has increased by 50% for the same quarter and same useage - only significant change was carbon tax.
And who got the MRRT wrong?
I think there is a good chance the Coalition had their costings right and it was made into a political point scoring exercise, imo.
Even if they were right, I would rather have an $11 billion black hole than the $250+ hole that labor have taken us into...grrrr
