Expression using variable doesn't work when drill down on chart

[#1]

I'm new to QV so this may be an easy question.  I have a chart that drills down from geographical territory to region.  I am using an expression that includes a variable.  The calculation works fine at the top level but returns nothing when I drill down. My variable  disappears when I drill down.  Does someone know what the issue is? 

[jonathandienst]

Ummm - it would be useful to have some information:

• sample qvw including representative data and the relevant chart
• the chart dimensions and expressions
• the variable defintion....

Otherwise we are all just guessing...

[#3]

See attached qvw.  When I drill into a region (try region 9) the variable defined in the input box zeroes out.  The variable is used in the expressions V% and #Var within the chart at the bottom.

%  Var

Num

(Column(1) / Column(2),'#,##0%')-

%Complete

Var% 

Num

(Column(1) - Column(2) *%Complete,'#,##0')

Thanks for the reply.  I've been traveling but will provide more details today.

[#4]

I added the qvw file above, and to clarify the issue:  the variable used in the iput box % of month complete disappears when I drill down in the chart, causing the V% and #V expressions to also zero out.  Any help or advice would be appreciated.