Dual wont work properly in Pie Chart data point label.

[b_garside]

I'm trying to create a dual label where it shows the text label and numeric price side by side with  '-' between them.

For some reason its not showing correct?  I can see is the Price but no DODAAC prefix. 

I would like to be able to use this in other charts once I get it working. perhaps someone can emulate this with a similar data set?

Dual( DODAAC&'-'&Num(Sum([TOTAL_PRICE]),'#,##0') , Sum([TOTAL_PRICE]) )

See attached image

[b_garside · Accepted solution]

My problem was located on the number tab. The expression was set to Money once I changed it to Default the text portion showed.  So even when an expression is correct all it takes is one simple setting to prevent proper usage.