WHAT THE NUMBERS MEAN
Different calculations can tell different stories
Illustrative synthetic dataset — not client performance
A simple illustration shows why aggregation matters. These figures come from an invented set of 18 segment-month records, not from a real business or an industry benchmark.
Unweighted average
Mean of 18 row-level return rates.
Pooled return rate
446 returned orders ÷ 9,578 total orders.
Services sample
28 returned orders ÷ 1,116 orders in six synthetic rows.
The correct calculation depends on the business question and the units being compared. A properly defined metric must explain its numerator, denominator and reporting period.
