Hi
I can build a simple web-based calculator according to your requirement and specifications you have shared. I have built many business websites with calculators hence I can do it for you with quality to meet your expectation. Please send me some more details to review. I am available to discuss further and start work IMMEDIATELY.
Skills → PHP, MYSQL, Bootstrap, HTML, JavaScript, Software Architecture,
eCommerce, CMS, WordPress, WooCommerce
Portfolio → https://www.freelancer.com/u/babitabubu
Regards,
Surajit