Need a coder to do a job on C#. Net language. To buy sell and trade. On the trading part some times there could be a situation where there will be money differences. For example. If a customer has an item that cost 15 dollars and another person has another that only costs 10. There is a difference of 5 dollars and i would change a fee to both, because there are both selling on my page. On the buying and selling it is simpler. But the trating part is more complicated.