B
Evidence Grade B
Graded
under review
Safe to Cite
Recent
8.6%
8.6% -- email campaign conversion rate for 50% off email offer (split test) (2025)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
8.6%
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
MTHD Marketing
Primary
Tier A
https://mthdmarketing.com/50-off-or-bogof/ ↗
Source Article
Should you offer 50% off or ‘buy one, get one free’?
They’re mathematically identical, but this case study reveals buyer perception trumps numbers
Here’s a little math question. Imagine I have two different brands of whisky on sale. Identical liquid, amount, etc. Let’s pretend they taste the same, too.
One brand is $15, marked down from its original p…
Original Research
MTHD Marketing
· Original study ↗
Methodology
Winning variant of split test (50% off vs 'buy one, get one free'); author states results were replicated in later tests
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
50% off email offer (split test): 8.6% email campaign conversion rate. Source: MTHD Marketing (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/fifty-percent-off-email-conversion-rate
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<blockquote cite="https://lighthousedata.io/data/fifty-percent-off-email-conversion-rate" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>8.6%</strong> -- email campaign conversion rate for 50% off email offer (split test)<br><small>Source: MTHD Marketing (2025) · <a href="https://lighthousedata.io/data/fifty-percent-off-email-conversion-rate" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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