Most businesses absorb more inflation than they recover. Learn how to calculate your cost pass-through rate, benchmark it against industry leaders, and identify which products are bleeding your portfolio.
Your COGS went up 35% last year. Your prices went up 18%. The question nobody in your commercial team can answer quickly: how much of that cost increase actually made it into your pricing - and how much did your margin silently absorb?
That gap has a name. It's called your cost pass-through rate, and it's the single most diagnostic number in margin management. Get it wrong - or worse, never calculate it - and you're flying blind through every inflationary cycle.
What Cost Pass-Through Actually Measures
The cost pass-through rate quantifies the percentage of input cost increases that are recovered through price adjustments. It answers a deceptively simple question: for every dollar of cost increase, how many cents did you recover in higher prices?
The formula:
Cost Pass-Through Rate = (Price Increase / Cost Increase) x 100
If your cost per unit rose by $2.00 and your price rose by $1.50, your pass-through rate is 75%. You recovered three-quarters of the cost increase. The remaining 25% was absorbed directly into your gross margin.
At the product level, this calculation is straightforward. At the portfolio level - across hundreds of products, multiple cost lines, different pricing cycles, and varying customer contracts - it becomes the most important and most neglected metric in commercial finance.
Why 75% Is the Benchmark That Matters
Carthena Advisory's analysis across FMCG and manufacturing portfolios consistently shows that leading companies sustain a pass-through rate between 70-80%. That's the zone where margin is protected without triggering volume destruction from price sensitivity.
Below 50%, the business is structurally subsidising its customers through its own margin. Above 90%, there's usually a pricing overshoot that shows up as volume decline within two quarters.
The problem is where most companies actually sit. In our diagnostic work, the median pass-through rate across portfolios in inflationary markets is between 40-55%. That means for every dollar of cost increase, the typical company recovers less than half. The rest vanishes into margin compression that shows up in the P&L as "lower gross margin" with no clear attribution to specific products or cost lines.
Pass-through rate benchmark zones
Where most companies sit — and where leaders sit
Most companies sit here
Leader benchmark
At Risk 0 – 40%
Margin destruction. Repricing or rationalisation required.
Watch 40 – 70%
Margin eroding. Action needed within 30 days.
Managed 70 – 90%
Margin protected. Monitor only.
Overshoot 90%+
Volume risk. Price may be exceeding market tolerance.
Source: Carthena Advisory analysis across FMCG and manufacturing portfolios, 2024–2026
The Three Mistakes That Distort the Calculation
Mistake 1: Calculating at the portfolio level only
The portfolio-level pass-through rate is a blended average. It hides the real story. A portfolio with a 65% blended rate might contain 30 products at 90%+ recovery (well-managed) and 20 products at 15% recovery (actively destroying margin). The blended number looks acceptable. The product-level reality is that a fifth of the portfolio is bleeding cash.
Every pass-through calculation must be done at the individual product level first, then aggregated. The portfolio number is the summary - the product number is the diagnostic.
The blended average trap
Blended portfolio rate: 64%
The headline looks manageable. Product-level reality is different.
Illustrative portfolio. Products, revenue weights, and rates are representative examples.
Mistake 2: Using list price instead of realised price
Most teams calculate pass-through using the recommended retail price or published price list. But realised price - what you actually collect after discounts, promotions, rebates, and trade terms - is often 8-15% lower than list price.
If your list price went up 20% but your realised price only went up 12% (because you simultaneously deepened promotional discounts), your true pass-through is much lower than the number your pricing team reported. The gap between list and realised price is where margin recovery goes to die.
Mistake 3: Ignoring the timing lag
Cost increases hit your P&L immediately. Price increases take 30-90 days to negotiate, communicate, and implement across channels. During that lag, every unit sold at the old price against the new cost is pure margin destruction.
A product with a "100% pass-through rate" based on the eventual price increase still lost margin during the 60-day implementation window. The effective pass-through rate - accounting for the volume sold at the old price during the transition - is always lower than the headline number.
How to Run the Calculation Properly
Here's the product-level pass-through calculation that accounts for all three distortions:
Step 1 - For each product, capture the current period's weighted average realised price (net of all discounts, promotions, and trade terms) and the prior period's weighted average realised price. The difference is your actual price increase per unit.
Step 2 - For each product, capture the current period's fully-loaded COGS and the prior period's COGS. The difference is your actual cost increase per unit. Include raw materials, packaging, energy, logistics, and any FX-driven cost changes.
Step 3 - Divide the price increase by the cost increase. That's your product-level pass-through rate.
Step 4 - Classify each product into three buckets:
- Managed (70%+ pass-through): margin is protected. Monitor but no immediate action needed.
- Watch (40-70% pass-through): margin is eroding. Price adjustment or cost renegotiation needed within 30 days.
- At Risk (below 40% pass-through): margin is actively being destroyed. Immediate repricing or product rationalisation decision required.
Step 5 - Calculate the revenue-weighted portfolio pass-through rate. Weight each product's rate by its share of total revenue. This gives you the true portfolio number, properly influenced by your biggest products rather than distorted by low-volume items.
What the Classification Tells You
The RAG classification isn't just a traffic light. It's a decision framework.
Products in "At Risk" with high revenue share are the emergency. They're large enough to move the portfolio number and they're haemorrhaging margin. These need a pricing action or a hard conversation about whether the product belongs in the portfolio at all.
Products in "Watch" with rising cost trajectories are the next emergency. They're not critical today, but if input costs continue to rise and no price action is taken, they'll migrate to "At Risk" within one or two quarters.
Products in "Managed" with declining volume are the hidden risk. They've recovered cost, but at what volume cost? If the price increase caused significant volume loss, the absolute margin contribution may be lower despite the healthy pass-through rate.
The Board-Level Version
When you present cost pass-through to the board or ExCo, lead with three numbers:
- Portfolio pass-through rate - the headline. "We recovered 58% of input cost inflation this period."
- Revenue at risk - the total revenue sitting in "At Risk" products. "32% of our revenue, representing $172M, is running below 40% cost recovery."
- Recovery opportunity - what the portfolio margin would look like if all "At Risk" and "Watch" products were repriced to 75%. "Closing the recovery gap represents $47M in monthly margin improvement."
That third number is what gets the board's attention. It's not theoretical margin. It's the quantified cost of inaction - the margin that's being given away every month the pricing gap remains open.
The three board numbers
How to present cost pass-through to ExCo
58%
Portfolio pass-through rate
Recovering less than 3-in-5 dollars of cost inflation
$172M
Revenue at risk
32% of total revenue running below 40% cost recovery
$47M
Monthly recovery opportunity
Margin improvement if At Risk and Watch products reach 75%
Illustrative example. Numbers are representative of a mid-size FMCG portfolio running below benchmark recovery.
What Happens Next
If you've run this calculation and found your portfolio pass-through rate below 60%, you have a structural margin problem that won't fix itself. Input costs in emerging markets remain elevated - OECD data shows headline inflation across member countries holding at 4.1-4.2% through late 2025, with food and energy categories significantly higher. The cost pressure isn't temporary. The recovery gap compounds every month it stays open.
The MarginCOS P2 engine runs this exact calculation automatically across your entire product portfolio - from a single Excel upload. It classifies every product, quantifies the recovery gap in your local currency, and generates the priority action list your commercial team needs to close it. Results in under five minutes, with a board-ready PDF report attached.