Hi,

Suppose you need ALL the data before you want the formula to display, here
is one way

IF(COUNTA(C10:C12,AK10:AK12,T10:T12)<9,"",IF(SUM(D ata!C10:C12)-SUM(Data!AK10:AK12)=0,"",SUM(Data!T10:T12)/(SUM(Data!C10:C12)-SUM(Data!AK10:AK12))))

If any of the necessary cells are empty, then the total cells containing
anything will be <9.

If this helps, please click the Yes button.

--
Thanks,
Shane Devenshire


"Kati" wrote:

I have this formula entered, yet I don't have all of the data in yet. Right
now I only have data for Row 11.
=IF(SUM(Data!C10:C12)-SUM(Data!AK10:AK12)=0,"",SUM(Data!T10:T12)/(SUM(Data!C10:C12)-SUM(Data!AK10:AK12)))
Here is what each thing equals: C10=0, c11=95105, c12=0, t10=0,
t11=219810.98, t12=0, ak10=0, ak11=103240.7, ak12=0. I want to hide the
formula but keep it in the sheet until all of the data is input. Can anyone
help me do this?
Thanks,
Kati