How to Sum a Distinct Count Measure

Hi,

I'd like to put a card in my board that tells me how many "Pharmacie" I have :

For example here, if I select the 101 secteur, I 'd like to have 10 in my card instead of 0

The Réassort filter is a measure :  

In conclusion I'd like to sum my Réassort measure but I don't know how to do it.

Any help !

Thanks

Lydie