Calulate a mesure based on year N-1

[ALLALOU]

Hello ,

I want to calculate a sum of mesure based on data from the previous Year (N-1)

expression to calculate my mesure on Year N :

 If(PERIODE='MTD',Sum({<[Date_Commande.autoCalendar.Date]={"$(=Max(Date_Commande.autoCalendar.Date))"}>}[Actuals MTD Année N]),
Sum({<[Date_Commande.autoCalendar.Date]={"$(=Max(Date_Commande.autoCalendar.Date))"}>}[Actuals YTD Année N])
)

I have 2 fields : 

[Mois/Année] : give me Month+year  (example 03/2020)

[Mois/Année Daily-1] : give me Month+year  N-1 (example 03/2029)

Thanks