i need programmer application trade currency sell and buy

i want application to show currency from control panel and if user selected any currency then can user sell or buy currency for price now then calculator this application Fully depends on the control panel control panel :- 1- Place the name and currency price 2- Bid Price after ordering an order from the user up 0.5 at purchase And minus 0.5 of the current price when selling 3 - A special table for customer orders with telephone numbers ---------------------------------- Application in Arabic only----------------------- Scenario 1- When the user enters the application, his name and currency prices appear 2 - Show beside the price of the currency the possibility of selling or buying Here are the following: - 3- add or Select the Client name 4- Choice of sale or buy 5 -Specify the type of cash transaction or bank check (if a bank check is selected, the names of the available banks will be shown) 6 -Price determination is required of the user whether for SELL or BUY all work from control panel