Javascript calculator needed asap to run on subdomain

Hi there,

I'm looking for a simple betting odds calculator that performs the same calculations and performs the same as shown below:
https://www.skillresources.com/example1
https://www.skillresources.com/example2

Design and functionality wise, please match the look and feel of below:
https://www.skillresources.com/example3

Please let me know your turn around time and also include the word "Pineapple" in your bid so I know it's not an automatic one.

Thanks for your time,
Ben