Website and Software Creation

[login to view URL] Need to make a website where customers can log on, purchase items, and we keep track of all purchases - we need to be able to easily add and remove items, and adjust their prices needs to keep track of all customer information past orders etc need to have different shopping categories and i want to be able to update it via spreadsheet. workflow is like this customer logs onto website - selects a fundraising category (we upload these categories) depending on what category they pick we change the percentage donated to that category - customer browses places order and checks out - orders get tallied and emailed to us or we can log on and see reports. and we fill the orders from there. we need you to design the website - make it so i can easily upload new items and categories or i can update prices via spreadsheet make sure customers have to log in and store their information make a spot for charities to sign up and use our service and we let them know what kind of percentages they can get so we can adjust the pricing. read more details from attached file