I have a formula that I want to implement for a series of data points. For
the first cell(A1) the formula would be "IF(E5=0, NA(), E6/E5)" The next cell
in the series (A2) would be "IF(E8=0, NA(), E9/E8)". So each time the formula
is iterated it increases each cell value by three. So, continuing the example
the next cell (A3) would contain "IF(E11=0, NA(), E12/E11)".

However, when I try the click-fill method it iterates by 1. I also cannot
have excel do this using the Edit -Fill- Series method either.

How may I iterate formulas by values different than 1?

excelBRISKbaby