Rollup Calculated Columns
Using the Lightning Conductor, as well as displaying columns from a list or library, you can also build your own calculated columns. For instance, you may wish to concatenate two columns, perform a calculation, or provide a custom display such as a KPI image. Calculated Columns can have multiple return types such as String, Single, Double, Date/Time etc. Once you have created the calculated column, it can be added to the view and may also have conditional formatting applied to the result.