Hello there
I am so glad to be here with you.
I am so interested in this project and I am sure I can do this.
As a professional web developer with 7+ years of experience, I am the one you are looking for.
Mainly, I've experienced with developing this kind of calculator.
And this makes me the best for this project.
Once you, believe me, I'll never let you down and put my all things such as time and energy on your project this instant to have you satisfied and give the best pleasure to you.
And I think nothing else is more important than this.
Looking forward to having your message.
Thank you for your attention.