The historical context
When reading a percentage, identify both the numerator and the denominator. A passing table can be easier to interpret when attempts and completions remain visible beside the rate. The statistical explanation of passer rating offers a useful example of why a measure needs its inputs, rather than only a rounded result.
A clearer way to read the evidence
Small and large opportunity counts should not disappear into identical-looking percentages. Record the source, qualification rules and rounding convention where they are available. If you calculate your own rate, show the inputs and label it as your calculation. This does not settle a historical debate, but it gives readers the information needed to examine the comparison for themselves.
Keep in your notes
- Keep counts with the rate.
- Identify qualification and rounding.
- Label your own calculations.