DAX Compare Two Selected Periods Measure

Uses two independent date slicers (via disconnected date tables) to compare sales between any two arbitrary periods.

Time IntelligenceAdvancedwhat-ifdisconnected tablecompare periods

DAX code

Period A Sales =
CALCULATE(
    [Total Sales],
    REMOVEFILTERS('Date'),
    'Date'[Date] >= MIN('Period A Dates'[Date]) && 'Date'[Date] <= MAX('Period A Dates'[Date])
)

Period B Sales =
CALCULATE(
    [Total Sales],
    REMOVEFILTERS('Date'),
    'Date'[Date] >= MIN('Period B Dates'[Date]) && 'Date'[Date] <= MAX('Period B Dates'[Date])
)

Generate a Power BI date table

Notes

'Period A Dates' and 'Period B Dates' are disconnected copies of the Date table, each with its own slicer on the report.

Requirements

Two disconnected date tables, each driven by its own slicer.

Builds on these measures

How to use this measure

In Power BI Desktop, select the table that should hold the measure and choose New measure on the ribbon.
Paste the code, then replace the placeholder table and column names with your own. The My table names fields above do this for you.
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 Compare Two Selected Periods.