I was using this just fine. (returns a percentage change between two lookups)
=(VLOOKUP($Q3,Import!$Q:$CA,4,FALSE)/(VLOOKUP($Q3,'Old
Import'!$Q:$CA,4,FALSE)))-1

But when I tried to add IFERROR so that all error values would return a
blank, it said that I have to many arguments for this function.
=IFERROR(VLOOKUP($Q3,Import!$Q:$CA,4,FALSE),"",(VL OOKUP($Q3,Import!$Q:$CA,4,FALSE)/(VLOOKUP($Q3,'Old Import'!$Q:$CA,4,FALSE)))-1)

I have been trying to figure this out for a while. What do I need to be
typing in instead? Thanks
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