How to make a variable not depend on current selections

[#1]

Hi Community,

The following is the code for my variable:

=sum(if([Calendar Date]>vFYStart  and [Calendar Date]<vCD and [Division Abbreviation]='ATD',[FACT_SHIPMENTS_AMOUNT_TY]))/vNumDays

vNumDays doesn't change, but the [Calendar Date] changes depending on my selection in the document.  How to get this variable to be regardless of selection?

[#2 · Accepted solution]

=sum({1}if([Calendar Date]>vFYStart  and [Calendar Date]<vCD and [Division Abbreviation]='ATD',[FACT_SHIPMENTS_AMOUNT_TY]))/vNumDays