Getting Prior Year’s Year-To-Date with DAX

Kasper de Jonge takes a look at how to calculate a prior year’s year-to-date over the same period as the current year:

Well maybe.. what happens here is that the DAX engine took the whole date range we have in context and shifts it back 12 months. This means for year 2019 it will use January first to December 31. So we get the entire year, is that what we want? Or do we want to see the sales for the previous year until the day we have data for this year so we can compare? Both need different DAX so let’s take a look.

Read on for a detailed analysis, including where you might go wrong.

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