percentage
Let an agent handle percentages by calculation, interpretation and communication, avoiding common confusions.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Calculation Computing.
Percent of
Basic.
Percent of
Basic percentage.
- What is this percentage of the given amount? measurement
- What is the base? definition
Change
Percentage change.
Change
Percentage change.
- What is the percentage change from the old to the new value? measurement
- Is the base the old value? boundary
Interpretation Meaning.
Points
Percentage points.
Points
Percentage points.
- Is the change in percent or percentage points? boundary
- How should it be stated? action
Relative
Relative versus absolute.
Relative
Relative versus absolute.
- Is a large relative change hiding a small absolute change? boundary
- Should both be shown? action
Rates Applied rates.
Definition
Rate definition.
Definition
Rate definition.
- How is this rate, such as occupancy or absentee rate, defined? provenance
- Over which period? definition
Finance
Interest rates.
Finance
Interest rates.
- Is the rate nominal, effective or APR? definition
- Is the user asking for personal financial advice? boundary
Learning Teaching.
Convert
Forms.
Convert
Conversion.
- How is this percentage written as a fraction or decimal? action
- Is rounding appropriate? boundary
Mistakes
Common errors.
Mistakes
Common errors.
- Is a percentage increase followed by the same decrease wrongly assumed to cancel out? boundary
- How can it be explained? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- noun.relation
- Plane
- XCT
- Domain
- XCT.REL
- Facets: substance
- abstract
- Facets: origin
- conceptual
- Facets: agency
- inert
- Facets: mobility
- not-applicable
- Facets: scale
- not-applicable
- Facets: affordances
- observable
- Other names and narrower kinds
- percent, per centum, pct, absentee rate, occupancy rate, hospital occupancy, hotel occupancy, vacancy rate, unemployment rate
What it is Filled
A proportion expressed as a number of parts per hundred, written with the percent sign (%), used for rates such as interest, occupancy, absentee and growth rates; changes may be expressed in percent or percentage points.
Why it exists Filled
Let an agent handle percentages by calculation, interpretation and communication, avoiding common confusions.
Distinguishing features Filled
- Parts per hundred
- Relative measure
- Easily misread
- Used everywhere
What robots and AI may and may not do Filled
Must not
- Present percentages without the base in a way that misleads.
- Confuse percentage points with percent changes.
- Present relative risk changes without absolute risks in health information.
Only with a human decision
- Using percentage thresholds in decisions about people.
May
- Compute and report percentages with their base stated.
- Distinguish percentage points from percentages.
Moral aspects Filled
- Misleading percentages distort health, finance and political information.
Who is affected
- The public
- Patients
- Borrowers
Owners Filled
Steward
Nobody owns the concept; it is held in common.
Links to other meta-models Filled
parent
- oewn-13837954-n - registry parent class
related
- proportion - category
- fraction and decimal - forms
- statistics - field
- percentile - different measure
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.percentage
- Open English WordNet: oewn-13839738-n
Direct properties not applicable Not applicable
Not applicable
Plane XCT: no invented physical properties.
Recognition optional Filled
- Percent sign
- Rates such as occupancy rate
- Per mille uses parts per thousand
- Numbers with a % sign.
Capabilities and actions required Filled
- calculate percentages and percentage changes
- distinguish percent and percentage points
- convert between fractions, decimals and percentages
- communicate rates clearly
Hazards and failure modes required Filled
- Confusing percent and percentage points
- Misleading relative changes
- Adding percentages incorrectly
Standards and interfaces required Filled
- ISO 80000-1 on the percent sign
- Consumer credit rules on APR disclosure
Context of use required Filled
- Comparing proportions and rates.
- simple percentages
- percentage change
- percentage points
- rates such as interest or occupancy
- percentiles (related but different)
Sources Filled
- Open English WordNet 2024, synset oewn-13839738-n - sense and gloss of the concept
- Wiktionary: percentage - word senses and usage
Open questions
- Should rates be separate entries?
- How should percentiles be split off?
- How should APR be linked?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-percentage/spec.json