A practical reading method
Record the Denominator Behind a Nonfiction Percentage
Copy only the minimum needed number and record the page plus source note. Write ‘of what?’ and capture population, time window, sample size, and exclusions where stated. If any part is missing, label it unknown and avoid converting the percentage into a broader claim.
Use this when a nonfiction number sounds dramatic but the reader cannot tell what was counted. Percentages lose meaning when the denominator disappears. A compact denominator note makes later comparison safer.
Use case
When this method helps
Use this when a nonfiction number sounds dramatic but the reader cannot tell what was counted.
Percentages lose meaning when the denominator disappears. A compact denominator note makes later comparison safer.
Method
Build the note
1. Copy only the minimum needed number and record the page plus source note.
2. Write ‘of what?’ and capture population, time window, sample size, and exclusions where stated.
3. If any part is missing, label it unknown and avoid converting the percentage into a broader claim.
Example
See the boundary in practice
‘Forty percent’ becomes 40% of 250 survey respondents who completed both waves in 2024; non-completers were excluded.
Quality check
Before you trust the note
Another reader should be able to state who or what the percentage describes without guessing.