Hello,
I've upgraded Ubuntu from 18.04 to 20.04 in order to have Skrooge at version 2.26 to solve woob bank issue. Ubuntu was upgraded because no 2.26 package be available for Bionic (18.04) version.
Since those upgrades i get all amounts in k€ instead of €
In a similar topic running systemsettings5 formats was requested but i didn't find any entry regarding currency.

Thank you for your kind help,

Here are my locale

jpm@SweetHome:~$ locale
LANG=fr_CA.UTF-8
LANGUAGE=fr_CA:fr_FR:en_US:en
LC_CTYPE="fr_CA.UTF-8"
LC_NUMERIC=fr_FR.UTF-8
LC_TIME=fr_FR.UTF-8
LC_COLLATE="fr_CA.UTF-8"
LC_MONETARY=fr_FR.UTF-8
LC_MESSAGES="fr_CA.UTF-8"
LC_PAPER=fr_FR.UTF-8
LC_NAME=fr_FR.UTF-8
LC_ADDRESS=fr_FR.UTF-8
LC_TELEPHONE=fr_FR.UTF-8
LC_MEASUREMENT=fr_FR.UTF-8
LC_IDENTIFICATION=fr_FR.UTF-8
LC_ALL=

Solved using :
gnome-language-selector and selecting francais (france) as preferred instead of francais (Canada)