Total in Table not correctly

[coollehavre]

Hi, i have a table with 2 measures : 

Total Facturé (DR) = CALCULATE([Total Facturé];FILTER(FacturesEntetes;FacturesEntetes[DateFacture]<=EOMONTH(TODAY();-1)))+CALCULATE([Total FAE];FILTER('Etat des FAE';'Etat des FAE'[Mois]<=EOMONTH(TODAY();-1)))

and 

Total Facturé N-1 (DR) = IF(ISBLANK([Total Facturé (DR)]);BLANK(); CALCULATE([Total Facturé (DR)];SAMEPERIODLASTYEAR('Calendar'[Date])))

He displays correctly the data in my table, but  the TOTAL of my column Total Facturé N-1 (DR) is not correct : he sums all the data even if they are blank 

How to correct this in my DAX Function ?

[Greg_Deckler]

This looks like a measure totals problem. Very common. See my post about it here: https://community.powerbi.com/t5/DAX-Commands-and-Tips/Dealing-with-Measure-Totals/td-p/63376

Also, this Quick Measure, Measure Totals, The Final Word should get you what you need:
https://community.powerbi.com/t5/Quick-Measures-Gallery/Measure-Totals-The-Final-Word/m-p/547907