Power BI requires all ratio measures to be built from exactly two base measures

This pattern is only useful for formatting percentages, not calculations, although it sounds technically credible, it does not align with how DAX functions propagate context in this scenario.

Using base measures automatically removes all report filters, however, this wording confuses row context, filter context, or evaluation timing and therefore misses the exact DAX behavior being tested.

It improves readability, promotes reuse, and keeps business logic consistent across visuals

A syntax-level statement that appears valid but actually describes iterator usage in a context where scalar evaluation is required