DAX Completeness % Measure

Expresses non-blank values in a column as a percentage of total rows, a basic data quality check.

Data Quality and GovernanceIntermediatecompletenessdata qualitypercentage

DAX code

Completeness % =
VAR NonBlankRows = COUNTROWS(FILTER('Sales', NOT ISBLANK('Sales'[ColumnName])))
RETURN
    DIVIDE(NonBlankRows, COUNTROWS('Sales'))

Notes

Replace 'Sales'[ColumnName] with the column whose completeness you want to check.

Requirements

How to use this measure

  1. In Power BI Desktop, select the table that should hold the measure and choose New measure on the ribbon.
  2. Paste the code, then replace the placeholder table and column names with your own. The My table names fields above do this for you.
  3. Run it through the DAX Formatter if you want it laid out in your team's style.

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More DAX resources

Browse all 175 measures in the Power BI DAX Measures Library, or search the library for something similar to Completeness %.