Download a website and parse the html code and put the result into a table. This table can be saved as CSV file (can be opened in Excel for example). You can create a pascal script which can download websites, parses the table entries.
iSkysoft DVD Creator for Mac
Discount: 30
Original price: 49 USD
After discount: 19 USD
Copoun code: 0
ImTOO Online Video Converter
Discount: 50
Original price: 40 USD
After discount: -10 USD
Copoun code: 0
ImTOO iPod Computer Transfer
Discount: 35
Original price: 26 USD
After discount: -9 USD
Copoun code: 0