Can the building return its cost?
Translate expected per-turn benefit into a production equivalent. This is your value assessment, not a hidden game formula.

A building payback window, settlement development choice and Economic Victory gap with local scenario persistence.
Civilization VII has no universal value for one turn. The models therefore use production-equivalent utility: you decide what Gold, Science, Culture or Happiness is worth for the current objective.
Translate expected per-turn benefit into a production equivalent. This is your value assessment, not a hidden game formula.
Compare current per-turn value with expected value after development. The model prices only the increment and assigns no universal value to a city.
Enter values from the game interface. The model adds planned sources without turning them into an invented per-turn rate.
Official material confirms the structure of the current version. Every numeric value comes from the game interface and stays on the device.