When last quarter's figure moves after the fact, someone has to explain why. Preql records every change to a definition with who made it, when and why, so you can show which change moved the number and who approved it.
1. Logic edited in place. A filter changes in SQL or a spreadsheet and the old version is gone.
2. No approval step. The person who changed it wasn't the person who owns the number.
3. Restated history. Prior periods quietly shift, and auditors ask for the bridge.

