Is there a way to reference the initial data point in a table? For example, I have a data table of average weekly customer products.
I want to now have a table that shows the weekly average as a percentage of the first value for each customer.
So ideally it would be in this same format, but the values in the table would be expressed as a percentage of each respective initial value. So, for customer 183, the values would be 100%, then 87.37%. Customer Grimco's values would be 100%, 100.5%, 100.7%, 100.8%, etc.
Is there a simple way to do this? Maybe somehow viewing by a custom expression? I can't figure out how to reference a specific value for each column. I might just have to go in with SQL.
Thanks in advance!