B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
18%
18% -- purchase intention increase for precise non-rounded discount percentages vs rounded discounts (2026)
Precise, non-rounded discount percentages increase purchase intention by up to 18% compared to rounded discounts.
- Stated as 'up to 18%'
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
18%
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
Ariyh
Primary
Tier B
https://app.sciencesays.com/archive?ref=benjaminach.fr&page=17 ↗
Source Article
Science Says
Original Research
Ariyh
· Original study ↗
Methodology
Consumer behavior research summary (Ariyh/Science Says)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
precise non-rounded discount percentages vs rounded discounts: 18% purchase intention increase. Source: Ariyh (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/precise-discount-purchase-intention-18
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<blockquote cite="https://lighthousedata.io/data/precise-discount-purchase-intention-18" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>18%</strong> -- purchase intention increase for precise non-rounded discount percentages vs rounded discounts<br><small>Source: Ariyh (2026) · <a href="https://lighthousedata.io/data/precise-discount-purchase-intention-18" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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