I have a spreadsheet with 2 columns; A has names and B has the date they attended the event. I created a pivot table with the data; the rows have the names and the columns have various date data.
With my pivot table, I want to determine the % of events they have attended since they initially attended for the first time. The denominator in this calculation will obviously shift depending on the start date. Additionally, the quantity of the total possible events needs the be extrapolated from raw attendance data.
Any help would be appreciated!
