Fecha de publicación: 27/06/2013 Fuente: Wipo "precision farming" A system for determining a real-time revenue metric is presented. The system can be configured to provide a real-time revenue/loss view of a field to identify underperforming machines whose performance may be improved, as well as identify unprofitable field areas. Machine yield data can be provided to a remote fleet revenue assessment system (FRAS) that can be configured to determine a machine revenue metric for a plurality of machines in a fleet. By way of example, the revenue metric can be in the form of a revenue ratio. Machine revenue metrics can be aggregated to provide a fleet revenue metric to which machine revenue metrics can be compared to identify underperforming machines. Based on a machine metric, a determination can be made as to whether machine operation should be altered to improve revenue production.