The number of users viewing a given variable directly affects the rate of change and/or outcome of said variable. In the case of eCommerce, pricing of products and/or services is based upon a user accessing a website on which products and/or services are for sale. An initial price indicia associator associates initial price indicia with the products and/or services files. The initial pricing can be based upon historical indicia or the engine itself. Thereafter, a price indicia adjuster adjusts the pricing responsive to user access of the website or related website. A user interface meter shown on the website indicates to potential buyers how much interest there is in the product and/or service being sold so that peer activity is exhibited to potential buyers to encourage sales and impulsive buying behavior. Pricing is dynamic and adjusts in real-time at a rate determined by the amount of users accessing the website.