📚 Ratio & proportion percentage calculators
The ratios cluster expresses parts of a whole and proportional splits as percents: market share, equity splits, ratio-to-percent conversion, and check splitting. Each URL keeps one allocation story for clearer retrieval.
Turn ratios and shares into percents: market share, equity splits, proportional allocation, and ratio-to-percent conversion. Confirm parts sum to your defined whole before interpreting results.
Key facts
| Part-to-whole | Part ÷ total × 100 after parts sum to the defined whole. |
|---|---|
| Use cases | Cap tables, market share slides, survey breakdowns, bill splitting. |
| Category | Business / mathematics |
| Related concepts | Percent of total, ratio normalization, weighted splits. |
Definitions
Market share
Firm sales ÷ market sales × 100 for the period and geography you define.
Proportional split
Allocate a total by relative weights that sum to 100% of the allocation basis.
Formulas
- Share %: (part / whole) × 100
- Ratio a:b as % of whole: (a / (a+b)) × 100 for two-part splits
- Weighted split: (weightᵢ / Σweights) × total
Comparison table
| Topic | Guidance |
|---|---|
| Share vs growth | Share is part-to-whole; growth is time-series change—use the change cluster for deltas. |
| Ratio vs fraction | Normalize multi-part ratios to a common total before converting to percent. |
Glossary references
Reinforce entities by pairing percent language with conversion pages when learners mix fractions, decimals, and ratios.
❓ Frequently Asked Questions
Can parts exceed 100% combined?
Only if your definition allows overlap; otherwise weights should sum to the whole you declare.
Where is cap-table dilution?
Start with equity split; confirm pre/post money definitions with legal counsel.