power bi

Hi,

You should first of all create a Calendar Table with calculated column formulas for Year, Month name and Month number.  Sort the Month name column by the Month number.  Create a relationship (Many to One and Single) from the Date column of yoru Data Table to the Date column of the Calendar Table.  Write this measure

Vin_no_count_Old_slot_date = CALCULATE([Vin_no Count], Calendar[Date] < date(2024,1,1))

I have assumed that Vin_no count is an explicit measure that you have written.