Thanks.
I use this on Excel but seems to be different.
=IF(ISERROR((L4-L6)/L6),(L4*100%),((L4-L6)/L6))
Now I tried this instead:
=IIf(isNumeric([TimeFrame])=True,DateAdd("m",[Time Frame],Now()),"N/A")
Because the Time Frame is just numbers 1-60 in a dropdown box. It also has the "Closed...