Hello,
I'm hoping someone can help me determine the most efficient way to filter specific rows from a data set. Below is an example of the input and output I'm trying to achieve:

Essentially I only want to see scenarios where the TRX_NUMBER duplicates, yet the TAX_RATE_CODE is different. I think a Multi-Row formula would do the trick, but I'm a relatively new user and have difficulty with that tool.
Any assistance would be appreciated.
Thanks!