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Re-testing NPS

In 2003, Fred Reichheld published “The One Number You Need to Grow” in *Harvard Business Review*, introducing Net Promoter Score (NPS). One question replaces multi-page satisfaction surveys: “How likely are you to recommend this company to a friend?” Scores 0–10; promoters (9–10), detractors (0–6). NPS = promoters minus detractors.

Reichheld and Bain & Company tracked 200 companies for three years. Every 10-point NPS lift correlated with a 2.5-percentage-point revenue growth above industry peers.

The score itself isn’t the point; it’s the structured analysis of “why promoters recommend” and “why detractors don’t.” This lodge did exactly that: instead of asking “what’s the score?” it asked “why recommend or not,” then acted on the root causes.

In his 2020 book *Winning on Purpose*, Reichheld added a key refinement: high NPS isn’t achieved by “making everyone happy.” It’s achieved by first fixing detractors’ pain points until they at least become passives. One detractor’s negative word-of-mouth carries 2–3 times the impact of one promoter’s positive word-of-mouth. Eliminating detractors is more efficient than manufacturing promoters.

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