Could you clarify what is the issue and what is the expected results?
Yes my apologies. In the spreadsheet under the order code column there is a percentage. That is the percentage that Tableau derived using the '% difference from'.
To the right of that the column labeled '% diff compared' is the calculated % difference that I did using the Avg. Day_turnaround_time.
The problem is that they don't match when they should and I know I am probably doing something wrong within tableau, but can't figure it out.
Here is a screenshot of the table calc: The 29.2% should be 25.5% as an example.