B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
70%
70% -- sales decrease from negative reviews for online stores (2025)
Four or more negative reviews can decrease sales by 70%.
Attribution:
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Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
70%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Martech Zone
Primary
Tier C
https://www.mara-solutions.com/post/how-to-write-the-best-replies-to-amazon-reviews-as-a-seller ↗
Source Article
How to Write the Best Replies to Amazon Reviews as a Seller
How to Write the Best Replies to Amazon Reviews as a Seller
Amazon is a lucrative online marketplace to sell products. But with 9.5 million Amazon sellers, competition is fierce. You must make the extra effort to stand out and increase your bottom line. To achieve this, Amazon sellers must respond t…
Original Research
Martech Zone
· Original study ↗
Methodology
Study by Martech Zone
Methodology documented
Segmentation
IndustryRetail
Channelmulti-channel
Cite this stat
Plain Text
online stores: 70% sales decrease from negative reviews. Source: Martech Zone (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/negative-reviews-sales-decrease-70
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<blockquote cite="https://lighthousedata.io/data/negative-reviews-sales-decrease-70" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>70%</strong> -- sales decrease from negative reviews for online stores<br><small>Source: Martech Zone (2025) · <a href="https://lighthousedata.io/data/negative-reviews-sales-decrease-70" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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