Tableau LOD calculation to DAX

[sanastasova]

Hi, 

I am having trouble converting this tableau formula to DAX. 

Could you please help ?

Tableau calculation: 

sum({ INCLUDE [Number] : countd(

if 

[Country]='FRANCE'

and [Distance]>0

then [Product Code] 

END)})

/

COUNTD(

if

[Country]='FRANCE'

and [Flag Distance]

then [Number]

END)