Monthly variation by selecting different months of the same year or following year

[Syndicate_Admin]

Hello I have this table where it shows me the variation and difference with the previous month, but I have a problem and that is that at the time of selecting 2 different months either from that same year I will not calculate the variation and real difference since this is with the previous month that is to say as I would do if at the time of selecting in the filter January 2022 and April 2022 I do the Variation of these months. Another example would be December 2022 against April 2023 if I select this in the filter it should show me the variation between these two months but as the measure I currently have makes the comparison is with previous month because it will not work for me. I have this table with the following measurements: