Evaluation of output-producing-asset production may be performed at least by incorporating knowledge of operators of the output-producing asset into the generation of values of performance-based metrics for the output-producing asset. Since such knowledge may be only known by the respective operators, mechanisms, such as a graphical user interface (“GUI”), may be provided by which an operator inputs such knowledge and by which such knowledge is incorporated into the generation of values of performance-based metrics for an output-producing asset. A results screen may be generated to display values of performance-based metrics in a configuration that facilitates quick and simple understanding by a decision-maker or other user on how to improve return on the investment (“ROI”) in an output-producing asset.