The total sum of my measure column is showing 0

[newbie9292]

Hello,
I am trying to write a dax measure which takes a parameter input and uses this input to calculate the new value. The calculation works on the row level but for some reason I get 0 in the total.

Here's the dax for my calculation : 

Custom_Gewichtet_Betrag =

VAR ScenarioCategory = [Scenario Category Measure]

VAR Betrag = SUM('MyTable1'[Betrag])

VAR OGchance= VALUE(AVERAGE('MyTable2'[Chance in %]))

VAR ThresholdHigh = VALUE(InputHigh[InputHigh Value])

VAR ThresholdLow = VALUE(InputLow[InputLow Value])

VAR CustomHighChance = VALUE('Custom Chance High'[Custom Chance High Value])

VAR CustomMedChance = VALUE('Custom Med Chance'[Custom Med Chance Value])

VAR CustomLowChance = VALUE(Custom_Chance_Low[Custom_Chance Value])

RETURN

SWITCH(TRUE(),

INT(OGchance) <= INT(ThresholdLow), Betrag*(CustomLowChance/100),

INT(OGchance) >= INT(ThresholdHigh), Betrag*(CustomHighChance/100),

INT(OGchance)>INT(ThresholdLow)&& INT(OGchance)<INT(ThresholdHigh),Betrag*(CustomMedChance/100)

)

Can someone please help me figuring out the issue?