The usual estimate for costs seems to be £500 million which, as always, is a remarkably round figure. I'm curious what the final balance sheet will be since most of the venues were sold out for all events
It might be accurate to the nearest £500 million!
Or 500 million somethings.
Everything would be 500 million of some unit, so maybe instead of specify quantities by stating the number of a fixed unit, we could have a fixed quantity of a stated unit size.
If your budget is £500 million and the Games cost £518 million are you underbudget? Would your answer be different if at the last minute the budget was increased to £550 million? Would your answer be different is this was space exploration?