Touched on this briefly in the discord (#translations).
The preposition used to ask a percentage (e.g. 4% of 2000) is different in each language:
- English: 4% of 2000
- Italian: 4% di 2000
- Spanish: 4% de 2000
- French: 4% de 2000
- German: 4% von 2000
Currently only the english one works, if one tries to ask using a different language like above no widget is shown. The whole UI could be translated in that language, so using "of" is not intuitive at all.
It's clearly a low priority request, but it's something that google does and I got annoyed a bunch of times (before I figured out that I had to use "of").
