IIF is going to eval BOTH parts (the THEN and the ELSE) even if it returns just one.
Try this instead:
= Round(
First(Fields!PaidClaims.Value)/
IIF(First(Fields!NbrClaims.Value)=0,
1,
First(Fields!NbrClaims.Value)
)
,2)
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Your lack of planning does not constitute an emergency on my part...unless you're my manager...or a director and above...or a really loud-spoken end-user..All right - what was my emergency again?