Fig. 2: Net Promoter Score (NPS) framework for scoring customer experience.

The diagram segments survey respondents by their 0–10 recommendation rating: Detractors (scores 0–6, red angry-face icon), Passives (scores 7–8, yellow neutral-face icon) and Promoters (scores 9–10, green smiling-face icon). The Net Promoter Score is calculated as the percentage of Promoters minus the percentage of Detractors; Passives do not enter the equation.