SteveShaw-HQ/Calculator — reverse-engineered prompt

Build me a simple one page calculator for businesses that move money across borders.

I want someone to land on the page, enter their transfer volume, and instantly see what their current banking setup is costing them per year. Then show a side by side comparison against a same day fiat to crypto to fiat settlement option with zero wire fees. The goal is to make the savings obvious in plain English and easy to understand at a glance.

Keep it clean, fast, and trustworthy. No sign up, no account creation, no stored data, just the numbers. Make the inputs and results feel polished, with clear labels and a strong callout for the annual difference or savings. It should work well on mobile and desktop, and feel like a lightweight public tool someone could use in a few seconds.

If you need to, look up current docs online, but keep the finished thing very simple and user friendly.