I need to update the following formula

I am trying to look in two different places to return data...the following formula is not working...

=IFERROR(SUM(Z22-AA22)/Z22,""),IFERROR(1/(1/INDEX('R:\Reports\Reports\[Weekly Report 8-21-13.xlsx]MF Projects'!$R$22:$R$100,MATCH($G22,('R:\Reports\Reports\[Weekly Report 8-21-13.xlsx]MF Projects'!$G$22:$G$100),0))),"")

I am trying to return a number....a percentage actually.
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=IFERROR(SUM(Z22-AA22)/Z22,IFERROR(1/(1/INDEX('R:\Reports\Reports\[Weekly Report 8-21-13.xlsx]MF Projects'!$R$22:$R$100,MATCH($G22,('R:\Reports\Reports\[Weekly Report 8-21-13.xlsx]MF Projects'!$G$22:$G$100),0))),""))

again, closed the first IFERROR too soon.

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wrt1meaAuthor Commented:
Thanks NB_VC....you tried to tell / show me that once before...

Thanks again.
No problem ;)
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