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.
Xilisoft Blu-ray Creator 2
Discount: 50
Original price: 50 USD
After discount: 0 USD
Copoun code: 0
Xilisoft Photo Slideshow Maker
Discount: 50
Original price: 40 USD
After discount: -10 USD
Copoun code: 0
Xilisoft Blu-Ray Ripper
Discount: 30
Original price: 50 USD
After discount: 20 USD
Copoun code: 0