Need assistance with several currency defaults in Prestashop 1.7 Multistore

I need som assistance with getting currencies to work correctly in a Prestashop 1.7 multistore.

I have 1 multistore group, with several stores in it. The stores each have it's own default language and default currency.

My issue is:
If I change the price on a product, for example set it to 100 SEK - then it will automatically just be 100 EURO as well...

But I need to function normally like this: If I set the product to 100 SEK then the other currencies should automatically be correct in their own currency. Exampel 10 EURO, and so forth.


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Have in mind that this project is me doing the work but you guiding me. So I won't be able to give you logins, etc. I can however give you screenshots of admin if needed. :)