Why put the valuta-sign behind the number??

When you look at the output when a certain fee (vergoeding, betaalvergoeding) is added.
It displays: “+ 0.50€ fee might apply”.
But it should be “+ € 0,50 fee might apply”. Especially when the Dutch language (your own native language) is used.

Note that the point is a comma, and then the euro-sign is in front of the number with a space.

Changing the translation via Loco Translate is useless because the code doesn’t care about %1s or %2s. So changing: “A +%1s%2s + %3s%% fee might apply” into: “A + %2s %1s + %3s%% fee might apply” doesn’t do anything (except for the added space).
It also useless to remove the first %1s, because in the case of the above code, it will simply change the %3s into the euro-sign.

So: A + € %1s + %2s%% fee might apply”
Will result in: A + € 0.50 + €% fee might apply