Simple inventory development

Hi, steff131284 

Please try the below.

Forecast =
CALCULATE (
[Bestand],
FILTER ( ALLSELECTED ( DateTable ), DateTable[Date] <= MAX ( DateTable[Date] ) )
)
+ CALCULATE (
[Delta],
FILTER ( ALLSELECTED ( DateTable ), DateTable[Date] <= MAX ( DateTable[Date] ) )
)

Hi, My name is Jihwan Kim.

If this post helps, then please consider accept it as the solution to help other members find it faster, and give a big thumbs up.

Hi, steff131284 

Thank you for your feedback.

Is your question, "show the last month ending inventory on this month" ?

Please check the link down below, whether it is what you are looking for.

https://www.dropbox.com/s/dugrnjye58e8orh/Reichweiten%20-%20Kopie.pbix?dl=0