Wrong Totals

Hi

I am a beginner in Power Bi and having a hard time getting my totals right.

Wrong column totals need to be corrected as I want to use this corrected total to multiply with an average cost

Data:

Measures:

Shipments Saved = DIVIDE([Volume],CALCULATE([Loadability volumetric],DATEADD(dDate[Date],-1,MONTH)),BLANK())

Shipments Saved WRONG = 
SUMX(
SUMMARIZE(dDate,dDate[Date],"_1",
          DIVIDE([Volume],CALCULATE([Loadability volumetric],DATEADD(dDate[Date],
-1,MONTH)),BLANK()
)
),[_1]
)

Volume = SUMX('Prototype Modeling_Freight', 'Prototype Modeling_Freight'[Sold Cases])

Loadability volumetric = DIVIDE([Volume],[Shipments],BLANK())