Assuming your data is in G9:G99 as indicated (G8 is a header), try

=SUMPRODUCT(--(G9:G99=1),SUBTOTAL(3,OFFSET(G9,ROW(G9:G99)-ROW(G9),)))/SUBOTAL(3,G9:G99)




"tonyv" wrote:

Hi,

I'm trying to get a simple conditional formula to work when I Auto Filter.

How can this be done?

I need to calculate the percentage of visible cells that have 1 in them of
the total visible cells

=COUNTIF(G9:G99,1)/COUNTA(G9:G99)