You can apply a GREP style auomatically,
create a character style to keep and apply it in the GREP style section of a paragraph style to a sequence like [\l\u]+\s\d+\s\%
Almost there but not quite...
I noticed that I have more variables, which does not work with this sequence. For example:
(Macruronus novaezelandiae) 75 %
Suolapitoisuus 0,8 %
You need only to extend it
Or incase a paranthesis: