NaN and Export Issue in Excel

Question

Hi
I have an Issue that I need to calculate value on below condition 
((ReportItems!txtPayaClick.Value/ReportItems!txtPayExpLH.Value)-1)*100.
But Above give me errorthat is showing  "NaN" as an Result.
Then I used;=IIF(ReportItems!txtPayExpLH.Value=0,0,((ReportItems!txtPayaClick.Value/ReportItems!txtPayExpLH.Value)-1)*100)
This Time when I Export the report in excel Format It gives me same error (NaN) .
Kindly help me .
Thanks

Answer 1

Hello,
The issue is due to the IIF function always evaluates both the true part and the false part, even though it returns only one of them. This means both the true part and the false part need to be evaluated.
In order to resolve the issue, please refer to the following expression:
=IIF(ReportItems!txtPayExpLH.Value=0,0,
((ReportItems!txtPayaClick.Value/IIF(ReportItems!txtPayExpLH.Value=0,1, ReportItems!txtPayExpLH.Value))-1)*100)
Alternatively, we can use following custom code to work around the issue:
Public Function Divider (ByVal Dividend As Double, ByVal Divisor As Double)
If IsNothing(Divisor) Or Divisor = 0
Return 0
Else
Return Dividend/Divisor
End If
End Function
Then, use following expression:
=Code.Divider(ReportItems!txtPayaClick.Value, ReportItems!txtPayExpLH.Value)
Regards,
Alisa Tang
Alisa Tang
TechNet Community Support