Where do most B2B sales deals die in the funnel?

The most common leakage points are: (1) MQL to SQL (leads not followed up quickly enough), (2) Demo to Proposal (prospects going dark after demo - no clear next step set), and (3) Proposal to Closed (procurement stall, multi-stakeholder paralysis).

How do I fix sales funnel leakage?

Diagnose by stage first - this tool shows you where. High MQL drop-off suggests poor qualification criteria; high Demo to Proposal drop-off suggests weak discovery; high Proposal to Close drop-off suggests missing champion or no urgency.

How do I calculate revenue impact of funnel leakage?

Take the revenue you lost at each stage and work backwards. If your Demo to Proposal drop-off is 30% instead of 50%, that's 20% of proposals you're missing. At your average deal size and margins, calculate the annual revenue impact. A 20% improvement in one stage can add 6-figures to annual revenue.

What's the difference between a conversion rate and a funnel stage?

A funnel stage is where the prospect is in their buying journey (Lead, MQL, SQL, Demo, Proposal, Closed). A conversion rate measures what percentage moves from one stage to the next. Healthy funnels have consistent stage definitions across your team—otherwise your conversion rates won't be reliable.

How do I improve a specific bottleneck in my sales funnel?

For low SQL conversion: review MQL qualification criteria—are you sending SDRs the right profiles? For low Demo to Proposal: strengthen discovery calls and set clear next steps before the demo ends. For low Proposal to Close: focus on finding and aligning the economic buyer earlier, build urgency through competitive pressure or timeline deadlines.

Sales Funnel Leakage Calculator

Enter your pipeline numbers at each stage to see exactly where leads are dropping off — and which bottleneck is costing you the most revenue.

About Funnel Leakage Calculator

What it does

Identifies where leads drop out of your sales funnel by calculating conversion rates between every stage, pinpointing the biggest leaks, and quantifying the revenue impact of fixing them.

Why it matters

Most companies lose 60-80% of leads between MQL and closed-won. Finding and fixing even one major leak point can add 20-40% more revenue without increasing top-of-funnel spend.

Definition

Funnel leakage is the percentage of prospects who drop out at each stage of the sales funnel. It's measured as the conversion rate between consecutive stages.

Assumptions

All leads enter through a defined top-of-funnel stage
Stage definitions are consistent across the team
Dropped leads represent lost revenue opportunity

How to interpret your results

Focus on the stage with the lowest conversion rate first — that's your biggest leak. Fixing a 20% conversion at one stage has more impact than improving a 60% conversion elsewhere.

How to improve

Speed up response time
Responding to leads within 5 minutes increases conversion 21x
Qualify harder
Better qualification means fewer leads leak from middle stages
Automate nurture
Dropped leads aren't dead — automated nurture sequences recover 15-20% over time

Pipeline Numbers

Leads

SQLs

Demos

Proposals

Closed Won

Avg Deal Size

Funnel Visualization

Leads500

100%

SQLs150

30%

Demos60

12%

Proposals30

Closed Won10

Stage-by-Stage Leakage

Transition	Conv. Rate	Dropped
Leads → SQLsBiggest Leak	30.0%	350 lost
SQLs → Demos	40.0%	90 lost
Demos → Proposals	50.0%	30 lost
Proposals → Closed Won	33.3%	20 lost

Overall Conversion

2.00%

Revenue (Actual)

$80,000

Fix This First: Leads → SQLs

Only 30.0% of Leads convert to SQLs. Improving this stage has the highest leverage on revenue.

Fix Pipeline Leaks with HelloGrowthCRM

HelloGrowthCRM's Pipeline Health Score automatically identifies your biggest conversion bottlenecks and generates a prioritized fix plan — so you know exactly where to focus to maximize revenue.

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