Calculate the average price and make some small adjustments

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
the url is:

this is a comparison site for mobile phone tariffs.

on this site i offer users the option to select the best tariff

i attached bitmaps for you to understand what im talking about.

- average price calculation based on all costs and rebates (in excel i created the columns with the rebates and costs).

- i need a admin backend, right now i just have a upload site, where i just can upload the csv file. / or make the upload site password protected, that not everyone can upload something

- the header of with the menu should implemented in if you look at you'll notice, that there is no header and menu, so that should be done aswell.

please dont tell me you can do it, but tell me how you want to do it, im not interessted in your last projects, i will only value your thoughts on this project.

Skills required:
Additional Files: updated.excel.xls compare function.jpg page for every single tariff.jpg phone.png calculation.jpg calc.txt
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