Definition
N is the value of the selected indicator. If the "Turnover" button is activated with the time dimension "Month" and the date "April 2018", then N corresponds to the sales value of the selection in the month of April 2018.
Example at 22/06/2018
Tip
N can represent multiple indicators in a single sheet. So, if the "Turnover" / "Volume" buttons can vary the definition of N.