When you want to keep track of price of certain product sometimes difficult task as well as subscribing to some certain services downloading software to track it and I will not get good results as you wish. because Amazon price fluctuate time to time and everyone I want decrease in price for discount on the product . here there are several methods that allows you to track but not the efficient way to track the price. Actually by this method track price of any sites like Amazon ,Flipkart and Snapdeal. so how exactly this works.