Methodology
FounderCalc publishes fast, transparent calculators—not a substitute for audited financial statements or professional advice.
Transparent formulas
Each tool exposes the operative math alongside inputs, illustrative examples, and plain-language pitfalls. Interactive results are recomputed client-side while server-side previews help keep imports and QA aligned.
Estimates—not tax, legal, or investment guidance
Outputs depend entirely on assumptions you supply. Results are illustrative planning aids, not authoritative tax filings, contractual pricing, underwriting, diligence memos, or regulated investment recommendations.
Validate with operational data
Use the data source that matches the question you are trying to answer, such as analytics, bookkeeping exports, refund logs, or inventory records. Re-run calculators after major shifts in pricing, audience mix, or channel strategy.
Guides and the glossary summarize vocabulary consistently so cross-tool comparisons stay coherent.