In ratio-based calculation procedures, the determination of values is founded upon the defined relationships within a value space and their mathematical comparison. The quantities under consideration are evaluated through their mutual relationships rather than solely through their absolute values. The value space provides a framework in which each value can be assigned a relative position with respect to other values. This approach enables the identification of scale differences, dependencies, and structural connections. The normalisation of relationships allows different variables to be compared on a common basis. The procedure also supports the management of uncertainty when precise absolute values are unavailable. The result is a systematic and reproducible method for describing phenomena according to the internal relationships of the value space. Consequently, conclusions are derived from relative information and its consistent analytical interpretation.