Close! Close! The next day, the Australian reported:

Opposition Leader Peter Dutton has conceded he doesn't know the cost of his marquee budget-reply proposal

And, then, earlier that day, he went on Sky to clean it up and he said this:

No, I mean the difference in the costings is around the parameters and the assumptions, and the Parliamentary Budget Office will finalise that work … that'll be released in due course

Twenty-one days later, no-one is still the wiser. Imagine if a Labor Leader of the Opposition had released a centrepiece of a budget reply three weeks later and said: 'Well, it will all appear in due course, and it might be hundreds of millions. It might be billions. We don't know what it is. We don't know what it'll cost. We don't know what the impact will be'! Fair dinkum, you're just not up to it. (Time expired)