Well it depends what you're rounding to.
If you're rounding to the nearest hundred, then it would be 54349, because once it becomes 54350, it'll round to 54400.
If you're rounding to the nearest ten, then it would be 54304, because once it becomes 54305, it'll round to 54310.
And then rounding to the nearest one, err, 54300.4.
