B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
25%
25% -- profit increase from retention improvement for Restaurant industry (2026)
A 5% improvement in customer retention can increase restaurant profits by 25% to 95%.
- Reported as a range of 25–95% profit increase resulting from a 5% improvement in retention
- Attributed to Harvard Business Review research
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
25%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Harvard Business Review
Primary
Tier B
https://bloomintelligence.com/blog/recovering-lost-restaurant-guests/ ↗
Source Article
Restaurant Customer Retention: The 2026 Guide — Data-Backed Strategies
Restaurant Customer Retention: The 2026 Guide – Data-Backed Strategies
What You’ll Learn in This Guide
This guide combines real data from Bloom Intelligence’s platform (millions of guest profiles, millions of tracked visits) with industry research and manual playbooks any operator can implement toda…
Original Research
Harvard Business Review
· Original study ↗
Methodology
Range 25–95% profit increase from 5% retention improvement; midpoint used. Attributed to Harvard Business Review research
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Restaurant industry: 25% profit increase from retention improvement. Source: Harvard Business Review (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/profit-increase-5pct-retention-25-95
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<blockquote cite="https://lighthousedata.io/data/profit-increase-5pct-retention-25-95" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>25%</strong> -- profit increase from retention improvement for Restaurant industry<br><small>Source: Harvard Business Review (2026) · <a href="https://lighthousedata.io/data/profit-increase-5pct-retention-25-95" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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