Web based application - finance report of a site

Here is the holistic detail of project: We need a web based application to integrate with our shopping cart and provide us financial reports based on payments, and use a referal code to segregate sales's agents commissions. some kind of business intelligence but in small scale. Our website is built on php and My sql. payment gatewat is paypal. All details shall be provided to contractor but almost all details are attached in this attachment. Lowest price will be chosen.