Try

=G7*100/$G$101

The SUM() is superfluous.


In article ,
"Tiana" wrote:

I'm wanting to copy a formula down a list of cells i.e. =SUM(G7*100)/G101
updating the first cell (G7) to the next (G8) and so on while keeping G101
constant throughout. I seem to recall the use of the $ sign but it's slipped
my mind how to do it.