FA-201b · Module 2

The Margin Waterfall

3 min read

A deal has five margin layers, and most organizations only track two. List price to selling price is the discount layer. Selling price to gross revenue is the terms layer (early payment discounts, credits). Gross revenue to gross profit is the COGS layer. Gross profit to contribution margin is the service delivery layer (implementation, onboarding, support). Contribution margin to net margin is the overhead allocation layer. A deal can look healthy at the gross margin level and be unprofitable at the contribution level. The waterfall reveals the truth.

Margin Waterfall — Deal #4127
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List Price:              $150,000  (100.0%)
  Discount:              ($22,500) (-15.0%)
Selling Price:           $127,500  ( 85.0%)
  Terms/Credits:          ($3,825) ( -2.6%)
Gross Revenue:           $123,675  ( 82.4%)
  COGS:                  ($30,919) (-20.6%)
Gross Profit:             $92,756  ( 61.8%)
  Implementation:        ($18,000) (-12.0%)
  Onboarding:             ($6,500) ( -4.3%)
  Year-1 Support:         ($8,400) ( -5.6%)
Contribution Margin:      $59,856  ( 39.9%)
  Overhead Allocation:   ($15,000) (-10.0%)
Net Margin:               $44,856  ( 29.9%)

This deal looked like 62% gross margin.
The real margin is 30%. The waterfall
revealed $33K in hidden cost layers.

Do This

  • Track all five margin layers: discount, terms, COGS, service delivery, overhead
  • Calculate contribution margin (after service costs) for every deal above $50K
  • Compare waterfall patterns across segments to identify where margin leaks concentrate

Avoid This

  • Stop at gross margin and assume the deal is profitable
  • Treat implementation and onboarding as "cost of doing business" outside the deal P&L
  • Ignore overhead allocation because "those costs exist regardless"