Flex Table: Multiple change percent columns

ThomasSKC
ThomasSKC ⚪️
edited January 4 in Charting

I'm trying to build a flex table that can analyze both % change against the first value in my data as well as the penultimate value in my data.

Flex table does not seem to have any functionality to allow different calculations of change percent for multiple columns. Any suggestions on what I might be missing?

Thanks in advance