Tell me about a time when a conclusion is made from incomplete or inconsistent data. What did you do?

I first confirmed the facts and contained the immediate impact. Next, I reviewed the reconciled dataset, calculation logic, trend, and exception list and coordinated the action to reconcile the data source, define the driver, compare trend, and explain exceptions. After verifying the result, I summarized the root cause, preventive control, owner, and follow-up plan so the issue would not recur.