B
Evidence Grade B
Graded
under review
Safe to Cite
Recent
25%
25% -- profit increase from 5pct retention improvement for eCommerce businesses (2025)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
25%
Unit
Percentage
Data Vintage
2025
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://webmedic.com/why-measure-customer-retention ↗
Source Article
Why Measure Customer Retention? eCommerce Guide
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Original Research
Harvard Business Review
· Original study ↗
Methodology
Widely cited Harvard Business Review finding (originating from Bain & Company / Frederick Reichheld research, 1990). Source states a 5% increase in customer retention can increase profits by 25-95%; midpoint of range used. No date given in article; publication year assumed.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
eCommerce businesses: 25% profit increase from 5pct retention improvement. Source: Harvard Business Review (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/hbr-5pct-retention-profit-boost
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<blockquote cite="https://lighthousedata.io/data/hbr-5pct-retention-profit-boost" 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 5pct retention improvement for eCommerce businesses<br><small>Source: Harvard Business Review (2025) · <a href="https://lighthousedata.io/data/hbr-5pct-retention-profit-boost" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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