Also, I notice you've uploaded some elements onto the project page, just thought it might be helpful to clarify some things with regards to the price-function and pricing graph.
Currently, your price at 10 orders is $313.16, and your price at 50 orders is $291.92. I understand that you might just be experimenting with the figures for now, but I thought I'd just give you an example of how to think of your costs:
Yes, we just be trial filling in the form for checking start setting up.