=IF((AZ2<$AX$7),(""),(("BA2/AZ2)*100")))

Happy to share the spreadsheet if it helps, it's nothing personal.

Here's how it shows up in Excel:

https://www.dropbox.com/s/kgdl1dhj3z1bgfu/excel problem.jpg?dl=0

The one cell that can't change as I use the fill handle is AX7. As soon as I drag the formula down a column all I see is the formula in the resulting cells. Ideas?

Thanks for any help with this.