The reporting framework you are working from was not built for the questions you are trying to answer now.
It was built for the business at the size it was when the reporting was designed, by people solving the measurement problem they had at that moment, against the channels that existed at that time. That framework has been extended, modified, and supplemented as the business grew, but it has never been replaced, because replacing it requires admitting that the current one is no longer fit for purpose and everyone in the room has decisions on their record that were made on the basis of the current one.
A navigator working from a chart drawn ten years ago is still navigating. The chart still has coastlines and depths and headings. It just does not have the reef that appeared eight years ago, or the new port built six years ago, or the updated tidal information that changes the safe approach. Every decision made on that chart is reasonable. Some of them are going to be wrong in ways nobody will see coming, because the chart looks authoritative and complete.
Your reporting looks authoritative and complete. The question worth asking is when it was last redrawn from first principles.
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