This application is designed for Texas sheep and goat producers to predict the change in value of light weight slaughter lambs and kid goats. The program requires producers to designate the month they intend to sell their animals, the weight of the animals, and cost of gain if they were to retain ownership. Thereafter, the application uses market data collected from Producers Livestock Auction Co. in San Angelo, TX dating back to 2010 to predict change in value (Marginal Revenue) based on month, weight gain, and cost of gain. The application does not forecast actual prices, but rather estimates the change in per head value that normally occurs in the market based on month and market weight. The application also reports the current value ($/Hd) and market price ($/Cwt.) and has a link to USDA-Agricultural Marketing Service reports, so that producers can easily assess current market conditions.