Building my websites calculator, (may require woocommerce etc)

serious bidders only Go to [login to view URL] and look at the OUR PRICES section, I want to be able to edit the values easily. But I don't know how the previous person wrote the code so I'd need you to read and understand the code or create a new one that is similar. The payment portal will be paypal, I want paypal to automatically connect what the customer has ordered. For example if they ordered Gold 5 to Gold 4 it will pop up in the paypal description automatically that they ordered Gold 5 to Gold 4 so checking with them isn't required. I also want an option for discounts e.g applying 10% discount the whole price calculator. And a custom amount calculator as well. You can use these other sites calculators for reference to the pricing/formula's [login to view URL] [login to view URL] [login to view URL]