Two download charts can look different because they cover different windows. Before discussing a trend, write down the start date, end date and time zone used by each report. Also check which episodes are included.
Define the comparison before exporting
Decide whether you need a calendar week, a month or the first several days after release. Keep that choice consistent for the question you are answering. A partial current month should not be casually compared with a complete earlier month.
Check whether the end date is included and whether the dashboard displays local time or another zone. If the provider does not explain a detail, record that uncertainty instead of inventing an exact interpretation.
Name exports with their scope and dates. A file called analytics-latest tells the next person little about what was actually measured.
Separate a reporting change from an audience change
If the dashboard changes its filtering or definition, note when that happened. A jump caused by a measurement change is not the same as a sudden change in audience behavior. Compare overlapping periods when the provider offers a way to do so.
For an episode comparison, use the same age after release as well as a clear calendar range. An older item has had more time to accumulate activity.
Keep the metric's name unchanged in summaries. If the source says downloads, do not relabel the chart as completed listeners. A consistent reporting window does not solve every measurement question, but it removes a common source of misleading comparisons before the team starts deciding what to record next.