B
Evidence Grade B
Graded
under review
Safe to Cite
Recent
50%
50% -- close rate lift for sales proposals with customized executive summaries (2025)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
50%
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
Proposify
Primary
Tier C
https://www.decktopus.com/blog/how-to-prepare-a-sales-proposal-step-by-step-guide ↗
Source Article
How to Prepare A Sales Proposal: Step by Step Guide - Decktopus AI
Sales & Proposals
How to Prepare A Sales Proposal: Step by Step Guide
Learn the 7-step sales proposal framework, verified best practices from top sales research, real-world examples, and how to build a client-winning sales proposal deck fast.
İlayda Tunaboylu
What Is a Sales Proposal?
A sales propos…
Original Research
Proposify
· Original study ↗
Methodology
Blog citing sales research from Proposify and independent industry data
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
sales proposals with customized executive summaries: 50% close rate lift. Source: Proposify (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/customized-executive-summary-close-rate-lift
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<blockquote cite="https://lighthousedata.io/data/customized-executive-summary-close-rate-lift" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>50%</strong> -- close rate lift for sales proposals with customized executive summaries<br><small>Source: Proposify (2025) · <a href="https://lighthousedata.io/data/customized-executive-summary-close-rate-lift" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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