Sum Value per Month betweet Startdate and Enddate

[Rydderski1]

Hello everyone,

i am currently working on a excel file which is connected to Qlik Sense.

My goal is a visualisation of SUM (FTE IT)  for each month where a project is running. 

For this exmaple:

August 22 FTE IT = 2.30

September 22 FTE IT = 2.2 and so on...

If anyone could help, I would be very grateful.

[G3S]

you could try

 if(stardate>=MonthField and targetdate<=MonthField, sum(FTE_IT),0)