Combine an "IF" and "OR" statement

[Picman]

I need to calculate the % difference between 2 years of sales, however one
year or the other may be a zero value (ie new customer this year or old one
last year that has no sales this year). Zero sales last year with sales this
year = 100% or sales last year with zero sales this year = -100%, or if there
are sales in both years calculate the % difference.

 

[Roger Govier]

Hi

Assuming your data is in column A and B, In C1
=IF(COUNT(A1:B1)<2,"n/a",B1/A1*100)

This will put n/a in the cell if either (or both) year(s) has no value
Change the "n/a" to "" if you want a blank cell to appear.

 

[Lars-Åke Aspelin]

I need to calculate the % difference between 2 years of sales, however one
year or the other may be a zero value (ie new customer this year or old one
last year that has no sales this year). Zero sales last year with sales this
year = 100% or sales last year with zero sales this year = -100%, or if there
are sales in both years calculate the % difference.

Last year in column A, this year in column B.

Try this formula in e.g. column C:

=IF(A1=0,100%,IF(B1=0,-100%,(B1-A1)/A1*100%))

Hope this helps / Lars-Åke

 

[Shane Devenshire]

Hi,

If you will never have both years without sales, then try this

=IF(A1,(B1-A1)/A1,1)

Where A1 is the old year sale's and B1 the new year's sales

 

[Picman]

That worked great, thank you very much.

Last year in column A, this year in column B.

Try this formula in e.g. column C:

=IF(A1=0,100%,IF(B1=0,-100%,(B1-A1)/A1*100%))

Hope this helps / Lars-Ã…ke