Yeah, nuclear provides a steady base load, so the percentage goes up or down depending on overall grid utilization. Right now its doing 2.28 MW [0], which is more than what Wikipedia claims as its "Nameplace capacity" of 2.256 MW [1].
To use the strongest plausible interpretation, the writer could be from Belgium, where the meaning of 2.256 depends on whether they wrote the number in French, Dutch or German.
The Belgians apparently typically invert the meaning of . and , in numbers (from how they are used in the US).
To make large numbers readable, Belgians use either a period (.) or a non-breaking space. Example: Two thousand thirty-six is written as 2.036 or 2 036. In formal Belgian French, the space is increasingly preferred over the period to avoid confusion with the Anglo-American system, but the period remains very common in Belgian Dutch and everyday shorthand.
I would guess Europeans tend to be better at SI units than people from the US. And let's not mention the the cancer of changing the value of G depending on context.