If your readers run businesses that accept cards, this is the tool they'll actually thank you for: two numbers from a statement, and they see the effective rate their processor never shows them.
Anyone who publishes for merchants and wants a genuinely useful, no-cost interactive tool on the page:
Writing about small-business costs, restaurants, retail, or e-commerce? Drop the calculator into a post about processing fees and let readers check their own number instead of taking your word for it.
A member-benefit resource that costs you nothing and asks nothing of your members — no account, no download, no data uploaded. The math runs in the reader's browser.
Put it on your resources page so clients can sanity-check what they're paying before your next meeting — and arrive with better questions.
How it works for the reader: they enter last month's card volume and total fees, pick their business type, and get their effective rate with an honest verdict band. If they want a free, full statement audit, they can leave an email — entirely optional, and the request comes to us, not to you. You never handle their information.
Copy this snippet into any page where you want the calculator to appear. It sizes itself to a sidebar or a content column and needs nothing else — no script files, no account, no API key.
<iframe src="https://processingsignal.com/embed-calculator.html" width="100%" height="640" style="border:0;max-width:460px" title="Effective rate calculator" loading="lazy"></iframe>
Terms, in one line: it's free to embed — just keep the "Powered by Processing Signal" attribution link intact and don't modify the calculator.
This is exactly what your readers get — try it right here:
Questions about embedding, or want a co-branded version for an association? Write to leads@processingsignal.com.