[NO COPY PASTE, please read my description]
I have analyzed ([login to view URL]) with different inputs. Along with this I have also reverse engineered, coded pages and found they have their formulas in background. This means that they have formulas hidden on browsers, so the output is from server. For example, if you try to check output of values on a opened page with disconnected internet, you'll never be able o see any output. I'm sure that other freelancers have not analysed the website, and must be expecting formulas on client side, which will finally lend up in trouble.
Being 100% transparent, I'm sure that you'll love my work and I'm right person to execute this task. But I'll have to get all formulas, that I'll do with my responsibility myself. Feel free to contact me.