Interactive Custom Calculator Development

I have three detailed calculation scenarios ready for you to wire up into a browser-based tool. JavaScript is the language of choice, and I’d like the interface to feel alive—think sliders, dynamic fields, and real-time results rather than a static form. The goal is a self-contained prototype that runs locally in any modern browser; hosting can wait until after testing.

The core of the job is to translate my formulas and business rules into code, then surface them through an intuitive UI. To be crystal-clear, the calculator must incorporate:
• Custom formulas
• Conditional logic
• Scenario-based calculations

Each scenario has its own parameters, thresholds, and output format, so clean modular code and thorough commenting will make review much easier. I’ll share full formula sheets and flowcharts once we start; for now, showing me links or screenshots of similar calculators you’ve built—especially financial or logic-heavy ones—will help confirm fit.

Deliverables: a single HTML/CSS/JS package, ready to unzip and open, plus a brief README explaining file structure and where to adjust variables if future tweaks are needed. Accuracy of outputs against my supplied test cases will serve as the acceptance criterion.

If this sounds in your wheelhouse, let me know how you’d approach the interactive elements and timeline for a first working draft.