Hi @Anonymous
Because DIVIDE captures *almost* all possible errors, I'm wondering why you even need IFERROR (or ISERROR).
IF you need IFERROR for some reason, the following hopefully shows what you need.
% of Stores with void =
IF(
HASONEVALUE( DTRData[Item] ),
IFERROR(
DIVIDE(
SUM( 'DTRData'[Void Count] ),
[Total Store Count],
0
),
??? // Replace this with the expression you want calculated when the above expression would raise an error.
),
IFERROR(
DIVIDE(
SUM( 'DTRData'[Void Count] ),
AVERAGEX(
DTRData,
[All Items All Stores Selling]
),
0
),
??? // Replace this with the expression you want calculated when the above expression would raise an error.
)
)
If you want an example of ISERROR, let me know.
Grant
