> For the complete documentation index, see [llms.txt](https://klickanalytics.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://klickanalytics.gitbook.io/docs/global-data/data-calculations.md).

# Data Calculations

- [All Historical Prices are Adjusted](https://klickanalytics.gitbook.io/docs/global-data/data-calculations/all-historical-prices-are-adjusted.md)
- [Historical performance metrics](https://klickanalytics.gitbook.io/docs/global-data/data-calculations/historical-performance-metrics.md): How they are calculated?
- [How percentage is calculated](https://klickanalytics.gitbook.io/docs/global-data/data-calculations/how-percentage-is-calculated.md)
- [Data quality controls](https://klickanalytics.gitbook.io/docs/global-data/data-calculations/data-quality-controls.md)