Hi,
Can I suggest you break the LONG equation down to SHORTER equations then combine them to get your final answer.
That way you can do the same in Excel and compare the results for each short equation to find any discrepancies.
Tom... 
Hi,
Can I suggest you break the LONG equation down to SHORTER equations then combine them to get your final answer.
That way you can do the same in Excel and compare the results for each short equation to find any discrepancies.
Tom...