Formulas and assumptions
Each priority calculator explains its formula, inputs, interpretation, example, and common mistakes. Outputs are planning estimates unless a page explicitly says otherwise.
How ToolViking works
Calculator methodology
Transparent methods, visible assumptions, local processing, and a documented correction path.
Local calculation
Current calculators run in your browser. ToolViking does not receive or store the numbers or text entered into these tools.
Testing and review
Automated checks cover calculator execution, invalid output, metadata, schema, links, sitemap membership, canonical URLs, and key page structure before release.
Corrections
If a formula, explanation, or result appears wrong, email hello@toolviking.com with the tool URL, inputs, expected result, and a reliable source where applicable. Reproducible errors take priority.
Update policy
Evergreen formulas are reviewed when product changes are made. Rules, fees, taxes, and platform-specific assumptions can change; pages that depend on them should state the limitation and must not be treated as authoritative current policy.
Decision standard: validate material financial, tax, legal, employment, advertising, and operational decisions against source records and qualified professional advice.
Last updated: September 25, 2026