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📋 Case Study · Power Electronics & Systems

How Helios Power Systems Improved Sales Forecast Accuracy from 38% to 91%

A power electronics manufacturer went from missing revenue targets by 62% to forecasting within 9% accuracy — in 4 quarters — using stage-weighted pipeline methodology.

🌍 India + Europe + Middle East 👥 35 reps, 3 business units ⏱️ 4 quarters (12 months) 📅 April 2026

Helios Power Systems (name changed) manufactures DC-DC converters, inverters, and custom power supplies for telecom, railway, and defence applications. Revenue: ₹95 Cr. Three business units with separate sales teams. For four consecutive years, Helios missed its annual revenue target — by between 18% and 42%. The board had lost confidence in the forecasting process.

"Our forecasts weren't wrong because we didn't know how to sell," said the CFO. "They were wrong because we didn't know what was actually in our pipeline. We were forecasting an illusion."

Forecast vs Actual Revenue — 4 Years Before VynDeal
Consistent optimism-driven forecasting failure
FY22 Forecast
₹95Cr forecast
FY22 Actual
₹68Cr actual (-28%)
FY23 Forecast
₹105Cr forecast
FY23 Actual
₹72Cr actual (-31%)
FY24 Forecast
₹110Cr forecast
FY24 Actual
₹76Cr actual (-31%)

Stage-Weighted Forecasting: The Fix

VynDeal introduced stage-weighted probability forecasting. Each pipeline stage was assigned a close probability based on Helios's own historical conversion data:

  • New Contact → Warm: 8% probability
  • Sample Sent: 20%
  • RFQ Received: 42%
  • Quoted: 56%
  • Commercial Negotiation: 78%
  • PO Expected: 91%

The first stage-weighted forecast showed a realistic ₹82 Cr pipeline (vs claimed ₹124 Cr). The CFO called it "the first honest number I've seen from this team."

Forecast Accuracy Improvement — Quarter by Quarter
Error rate = |forecast - actual| ÷ actual
Q1 (baseline)
62% error
Q2 (VynDeal live)
45% error
Q3 (data maturing)
28% error
Q4 (full adoption)
18% error
Q5 (year 2 Q1)
12% error
Q6 (year 2 Q2)
9% error

🚀 What would your board meetings look like with forecasts you actually believed?

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The Three-Bucket Forecast Model

Helios adopted VynDeal's three-bucket forecast for every quarterly board presentation:

  • Pipeline (conservative): Stage-weighted sum of all active deals — the base case
  • Best case: All RFQ-stage and above deals at 100% — the optimistic upside
  • Committed: Commercial negotiation and PO expected only — what production planning is based on

The range — "we will likely do between ₹82–95 Cr, committed ₹68 Cr" — gave the board something they could plan around. Manufacturing, procurement, and cash flow planning all improved as a result.

91%
Forecast accuracy after 6 quarters (was 38%)
₹42Cr
Pipeline removed as unrealistic in first clean-up
3
Forecast buckets: pipeline, best case, committed
4Qtrs
From broken forecasting to board-grade accuracy
91%
Forecast accuracy
↑ from 38% in 6 quarters
₹82Cr
First honest pipeline
vs ₹124Cr claimed
0
Target misses
Since full VynDeal adoption

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"Our board had stopped believing our forecasts. The first quarter with VynDeal stage-weighted data, we hit within 9% of forecast. The CFO called me after board sign-off and said: 'That's the first time in 4 years we've been able to plan with confidence.' That call was worth more than the entire VynDeal subscription." — CEO, Helios Power Systems