Global Variables to Create a Shopping Cart

Hi everyone, I am very new to using Axure so please me since I probably made things more difficult than they should.
I am working on a project for a class and I am designing a mobile app for a restaurant. The app allows the user to select the food and the price is added at the bottom of the cart page/review order. I want to also display the items selected on that page as well. I used global variables to accomplish adding the price at the bottom, though using global variables again in Order(rec) and Order(rec2) causes it to display either Hamburger Hamburger, not Hamburger Cheeseburger.

Attached is the project so far. I would love any input and appreciate any help!
App.rp (1.8 MB)