A surcharge lag was never passed into customer contracts.
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Manufacturing · Packaging

A surcharge lag was never passed into customer contracts.

This marketing & margin audit surfaced $79k in recurring annual margin in a Manufacturing business — evidenced, senior-reviewed, and delivered in 7 days.

$3–8M annual revenue Packaging Focus: Surcharge pass-through
+$79k
margin recovered / yr
+7pts
contract margin
7 days
to findings
Contract margin vs live input costs
Before audit
9%
After fix
16%

The business

A corrugated-packaging manufacturer supplied customers on contracts that set pricing, while its own input costs — particularly resin, board and energy — moved with volatile commodity and utility markets. Surcharge mechanisms existed to pass rising costs through, but they were applied slowly and inconsistently, so how far contract pricing lagged real input costs was never systematically tracked.

What triggered the audit

Contract margin was eroding despite stable volumes, the classic signature of input costs outrunning the pricing that’s meant to cover them. The audit compared the movement in resin, board and energy costs against the surcharges actually passed into contracts, testing how far pricing had fallen behind.

What the audit found

Contract pricing had fallen well behind rising input costs because the surcharge mechanism lagged. Resin, board and energy costs had climbed through volatile markets, but the pass-through surcharges were applied late, negotiated inconsistently, and often absorbed rather than enforced — so contracts were running on pricing that no longer reflected what production actually cost. Every month the lag persisted, margin eroded on volume that looked perfectly healthy, and because the erosion was spread thinly across many contracts and buried in commodity noise, no one had quantified it. The gap between input-cost movement and the surcharges genuinely passed through amounted to roughly $79k a year of contract margin quietly given up.

How we produced this finding

MarginFix reached the surcharge pass-through finding by doing what the manufacturing team hadn’t: rebuilding contribution margin cost by cost, so the real economics of every sale were finally visible. The figure is evidenced, tied to the client’s own data, and signed off by a named senior auditor.

Data sources: Cost of goods, surcharge pass-through inputs, fulfillment, fees, returns and discounts — reconciled per unit and per order, so the true contribution margin behind every single sale is visible rather than assumed.

Key frameworks: A full contribution-margin and cost-to-serve rebuild, full-cost ROAS and margin-based ROI analysis, framed by the Enterprise Marketing ROI Framework that treats spend as a capital-allocation decision.

Human validation gate: Every number is rebuilt on your own cost data and signed off by a named senior auditor before it ships — no figure leaves the building without a human standing behind it.

Verified against
ERP cost ledger Fee & surcharge schedules Freight & fulfillment invoices BOM / landed cost Finance P&L

The margin recovered / yr was measured like-for-like over a matched period, reconciled to invoiced margin in the P&L, and signed off by a named senior auditor before publication. Client identity redacted to protect their commercial position.

WORKING PAPER ████████ Packaging
Representative Redacted
Contract typeContract margin
Spot orders
+18%
Indexed contracts
+15%
Fixed legacy contracts
−1%
margin recovered / yr +$79,250
Recurring — recovered every year the fix holds, not a one-off.
Working paper: contract margin vs live input costs traced line by line and reconciled to invoiced margin in the P&L over a matched period. Line items representative and redacted; the recovered figure is the reconciled audit finding.

What we changed

Rebuilt the link between input-cost movement and contract surcharges, so resin, board and energy rises pass through promptly and consistently.

Enforced the surcharge mechanisms that had been absorbed or negotiated away, recovering the margin the lag had steadily cost.

Introduced an indexed pass-through tied to published commodity and energy benchmarks, removing the lag at its source rather than negotiating it each time.

Made contract margin against live input costs a monitored metric, so pricing can’t silently fall behind volatile costs again.

The result

$79k a year of contract margin recovered by closing the lag between input costs and pricing — a 13× return on the $5,950 Audit + Sprint fee. For any manufacturer on cost-plus or contract pricing, the surcharge lag is the leak: when pass-throughs are slow or absorbed, margin erodes on perfectly healthy volume, buried in commodity noise. If your pricing trails resin and energy moves, you’re giving up margin every month. A fixed-fee audit quantifies the gap in days and installs an indexed pass-through that keeps pricing current.

From kickoff to signed-off findings: 7 days — inside our fixed 5–7 day window.

Reviewed & signed off by:
MarginFix Audit Team
Senior Auditor · MarginFix · 10+ years of auditing experience
Anonymized to protect the client · senior-reviewed findings · Last reviewed
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