need customization of my core php website

Dear Freelancers, It’s a simple job and my budget is 30-40USD and time frame is one day. I AM EXPLAINING IT AS MUCH AS POSSIBLE TO MAKE IT [login to view URL] DON’T GET AN IMPRESSION THAT BIG TEXT MEANS BIG [login to view URL] READ IT AND BID ONLY AFTER THAT Regarding the job: We have an ecommerce website with few categories and sub [login to view URL] developed in CORE PHP As the Christmas Season is coming near,we need to give some discount to our products in this season. Its not practical for us to input the discounted price for each and every product as we have a long list of [login to view URL] we are looking to give discount for entire category or sub category. For example:20%off for all products which falls under the category “rings” You can visit the website here [login to view URL] #[login to view URL] we should have an option to increase and decrease the price in percentage and the discounted price will be shown in the respective product details Also sometimes We might first increase the price by ,say 10% and all the respective prices will be reflected and again then reduce it by 15% . It should also accommodate the transactions like these . #[login to view URL] we have an option to give individual discount to a single [login to view URL] was working and now not [login to view URL] have to rectify the problem. #[login to view URL] need to put a list of countries that rolling..just like in this link [login to view URL] I mean something like the rolling text under the video section of this link. I wil give the list of countries that needs to be put there in the rolling script .#[login to view URL] need to correct a part of the TEXT in a html page Read it and only Bid after that. Thanks San