Your question is Reconciling Conflicting Report Metrics. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Two ASI reports show different values for what appears to be the same metric. Describe how you would investigate the discrepancy using SQL and data manipulation techniques, including how you would validate metric definitions, compare filters, inspect join grain, detect duplicate inflation, and isolate the step where the numbers diverge.