This issue can be avoided by following the ISO standards ISO-31 and ISO-80000-1. Under these grouping is done by separating groups by a small space (U+2009, THIN SPACE, is usually used, I believe). If there is a period or comma in the number, it is then unambiguously the decimal separator.
We should even already be used to that style, because those are the standards that cover how SI units are supposed to be written.
So just write it as 10 000% and everyone should be happy.
We should even already be used to that style, because those are the standards that cover how SI units are supposed to be written.
So just write it as 10 000% and everyone should be happy.