Name 

Provide a name for the column to be displayed in the report.

Type

Select the column type to display in a report.

• Population: Used for general reporting involving counts

• Formula: Displays data based on a formula.

Column Group

Columns may be grouped together. When used, groupings will display when viewing the report.

Column Width

Adjust the column within the part. Use px (e.g. 150px) or percentages (e.g. 25%).

Variable Name

Assign a variable to the data column to be used in a formula. 

Formula

Display data based on a formula.

Number Format

Display values in a particular format. For more details see:

• docs.microsoft.com - Custom Numeric Format Strings

• Number Format section in Formulas in Reports