How to use the result
Run three versions: a conservative case with zero uplift and zero time saving, an evidence-based expected case, and a downside case with lower adoption. The range is more useful than one optimistic number.
Measure actual adoption, order value and staff handling time after launch. Replace assumptions with venue evidence and review whether the service workflow—not only the software—needs adjustment.
For the operational measures behind the calculation, use the hotel room service KPI guide.