About Know the Figures

Most business finance arithmetic is not hard. It is just locked up — inside enterprise software priced per seat, or inside a consultant’s spreadsheet, or behind a form that wants your phone number.

None of these calculations need a server, a subscription or an account. So they are here, free, running entirely in your browser.

How this is paid for

Eventually: display advertising, a weekly email, and partner links to software — accounting, invoicing, payroll, bookkeeping tools. That is the whole list.

What we will never do

• Take money from a broker, prop firm, crypto exchange, bank or any company that holds or moves your money.
• Tell you what to invest in, or publish trade signals.
• Claim you will make a particular amount of money.
• Send the figures you type anywhere. The calculation happens on your device and stops there.
• Ask you to register to see a result.

What goes wrong sections

Every calculator has one. It is the part that says where the number stops being trustworthy — the assumption that quietly breaks, the input people get wrong, the case the formula does not cover. Tools that only show you a confident number are the ones to distrust.

Corrections

If a formula here is wrong, it gets fixed and the change is noted on the page rather than quietly patched.