French phrase
À quel pourcentage en êtes-vous ~ ?
Meaning
What percentage of ___ have you completed?
When to use it
Asks how much of a procedure or application is complete. The wording is clear and mildly formal.
Example dialogue
À quel pourcentage en êtes-vous pour la demande de visa ?
What percentage of the visa application have you completed?
J'en suis à environ 80 % et il manque la lettre d'acceptation.
I've completed about 80%, and the acceptance letter is still missing.