I need help on my Excel sheet. How can I declare the following IF condition properly?
if A1 = \"n/a\" then C1 = B1
else if A1 != \"n/a\" or has valu
"N/A" is not a string it is an error, try this:
=if(ISNA(A1),C1)
you have to place this fomula in cell B1 so it will get the value of your formula
A possible alternative approach in Excel 2010 or later versions:
AGGREGATE(6,6,A1,B1)
In AGGREGATE function the first 6 indicates PRODUCT operation and the second 6 denotes "ignore errors"
[untested]
You can also use IFNA(expression, value)
Input the following formula in C1:
=IF(ISNA(A1),B1,A1*B1)
Screenshots:
When #N/A:

When not #N/A:

Let us know if this helps.