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CitedFigures.

CitedFigures · How we work

Methodology

Every calculator across the CitedFigures family is built the same way: published math, primary sources, a named reviewer, and a worked example. This is the standard — in full, so you can hold us to it.

Last reviewed: June 2026

CitedFigures is the publisher behind a family of calculator sites — BizMathPro, CoverageCalc, PropertyMathPro, and the rest. They keep their own names and homes; CitedFigures is the trust standard above them. That standard is not a slogan. It is a checklist every page has to pass before it ships, and it is the same checklist on every site.

The three pillars

One promise holds the family together: the calculator that shows its work. In practice that means three things, and a page is not done until all three are true.

  1. Open-source math. The formula behind every calculator is published as typed, tested code. You can read the implementation, check the assumptions, and reproduce the result yourself. No black box, no magic numbers behind a paywall. Where the code lives →
  2. Primary-source citations. Every rate, threshold, and rule traces back to its original source — a statute, a government publication, a regulator, or an industry-standard reference. The citation is the proof. Our source standard →
  3. Named-author editorial accountability. Every site is reviewed and signed by a named operator, not an anonymous content mill. There is a real person and a public byline behind the math. Who reviews this →

How a calculator gets built

The same sequence runs for every tool in the family:

  1. Find the governing source. We start from the rule that actually governs the calculation — the IRS publication, the statute, the regulator’s table — not from a competitor’s calculator or a summary blog post.
  2. Write the math as code. The formula is implemented as a pure, typed function with unit tests that pin the result to known examples. If the math can’t be tested, it doesn’t ship.
  3. Separate inputs from rules. Tax brackets, contribution limits, and rates that change by year are treated as inputs, never hardcoded folk knowledge. When the law changes, we change the input and re-verify — we don’t quietly leave a stale number in the code.
  4. Cite every number. Each rate or threshold gets a visible citation that links to the primary source, so a reader (or an AI engine) can confirm it without taking our word for it.
  5. Show a worked example. Every calculator page includes at least one fully worked example with its assumptions stated, so you can see the formula in motion before you trust it with your own numbers.
  6. Human review. Nothing auto-publishes. A named reviewer checks the math, the citations, and the prose against this standard before a page goes live, and signs it.

What we will not do

  • We don’t hardcode tax or regulatory numbers as if they were permanent. They are inputs, sourced and dated.
  • We don’t give prescriptive advice. Our calculators produce estimates for planning. They are not legal, tax, financial, or investment advice, and they don’t tell you what to do.
  • We don’t publish a formula we can’t show. If the math isn’t in the open-source repo, it isn’t on the site.
  • We don’t put advertising above the calculator, or let an ad placement cannibalize the answer you came for.

Keeping numbers current

A calculator that was right in 2024 can be wrong in 2026 if a limit changed. We monitor the time-sensitive figures on every page and flag them for re-verification on a schedule, so a number doesn’t silently drift out of date. When we refresh a page, we re-check the source and update the “last updated” date — we don’t bump the date without a real change.

When we get it wrong

We will get something wrong eventually — a number, a citation, an edge case. When we do, we fix it in the open and log it. If you spot an error, tell us, and we’ll act on it. Our corrections policy →

The math itself is public: github.com/bedrocka-ventures/bedrocka-tools-calc.