How do I create a new column that is the average of the two previous columns that are dynamically updated?
For example, please see the attached screenshot, On Excel, as each month's data is updated, I want the "MoM" to be the average of the two most recent months. So if I add July-17, the MoM column will become the average of June and July instead of May and June. Is there a way to replicate this on Alteryx? Thanks!