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Same Period Last Year

Part of the Time Intelligence section of Coddy's Power BI journey. Lesson 11 of 17.

SAMEPERIODLASTYEAR(Dates[Date]) moves the row's dates back one year.

Revenue LY = CALCULATE([Revenue], SAMEPERIODLASTYEAR(Dates[Date]))

March 2025 shows March 2024. The rows of 2024 are blank: there is no 2023 data.

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Challenge

Write Revenue LY: Revenue for the same dates one year earlier. It is checked for each month of each year.

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All lessons in Time Intelligence

1Dates and Calendars

The Date TableCounting DaysWeekdays and WeekendsFirst and Last DatesRecap - Revenue per Day

2Totals That Grow

Year to DateDATESYTD Inside CALCULATEQuarter to DateRunning TotalRecap - Customers So Far

3Comparing Periods

Same Period Last YearGrowth Year over YearThe Month BeforeMonth over Month GrowthThe Last 7 DaysThe Last 3 MonthsRecap - Year to Date Growth