I am using the results of a Vlookup in calculations for other cells, the
problem is that if a value of #N/A is returned (when it can't find what I'm
looking up), all calculations attached to that cell give me #N/A's as well.
I want it to return a zero if it would normally return an #N/A. I can
usually achieve this with a SUMIF(A1,"0") in another cell that points to my
vlookup, however because of the math in this specific circumstance, my
calculations need to be able to point directly to the vlookup, and not the
sumif. How can I get Vlookup to report a zero instead of an #N/A. I've
failed with different IF attempts, and it won't let me successfully place the
vlookup function inside of the SUMIF.

Thanks for your help!