Short answer
A pricing case asks what a client should charge or whether to change a price. Set three anchors (a cost floor, a competitor reference and a customer value ceiling) and pick a point between floor and ceiling. Then check how much of list price survives discounts and rebates, test how much volume the change can lose, and recommend one sized number.
Key takeaways
- Every price sits between a cost floor and a customer value ceiling, with the competitor's net price as the reference point in between.
- Apply the cost floor and the value ceiling to pocket price, the money the client keeps after every discount, rebate and allowance.
- A price rise of x at contribution margin m survives a volume loss of up to x / (m + x); a price cut needs x / (m - x) more volume.
- Classic McKinsey research found a 1% price gain lifts operating profit by 8-11%, more than any other lever.
- Margin divides profit by price and markup divides it by cost; confusing them is a common and expensive error.
What is a pricing case?
A pricing case asks you to set a price for a new product, change an existing price, or explain why the price a client actually realizes is too low. It appears as a standalone case or as one step inside a profitability or market entry case. The interviewer tests whether you can combine three views of price with calculator-free math and land on one defensible number.
Every pricing answer rests on three anchors (cost, competitors, customer value) and two checks: how much of list price leaks away before it reaches the bank, and how much volume the client can lose before a price change hurts profit.
Three anchors for any price
| Anchor | Question it answers | How to calculate | What it sets | Common trap |
|---|---|---|---|---|
| Cost-based | What must we charge to cover cost and earn the target margin | Variable cost / (1 - target margin) | The floor | Applying it to list price instead of pocket price |
| Competitor-based | What do customers pay for the next best option | Rival's net price, adjusted for differences | The reference point | Copying a rival list price that nobody pays |
| Value-based | What is the product worth to this customer | Reference price + money value of your advantages | The ceiling | Claiming all the value, which leaves the buyer no reason to switch |
The price lands between floor and ceiling. The gap between the competitor reference and the value ceiling is the differentiation value, and the client shares it with the customer. A defensible opening position in an interview is to capture part of that gap, for example around half, and to explain the split.
Why a 1% price change moves profit so much
Price reaches profit undiluted. If volume holds, every extra euro of price is extra profit, because costs stay the same. A company with a 9% operating margin that raises price by 1% adds 1 point of sales to 9 points of profit, a profit gain of about 11%.
In the 1992 Harvard Business Review article that introduced the price waterfall, McKinsey's Michael Marn and Robert Rosiello used the average economics of 2,463 companies and found that a 1% price improvement raised operating profit by 11.1%, against 7.8% for variable cost, 3.3% for volume and 2.3% for fixed cost (reported, academic reprint). McKinsey's 2003 update for an average S&P 1500 company put the price effect at about 8%, roughly 50% more than a 1% variable-cost cut and over three times a 1% volume gain (official). The profitability guide shows the full lever table; in a pricing case, the numbers justify looking at price before cost.
Elasticity and breakeven volume: the two formulas to know
Price elasticity = % change in volume / % change in price. An elasticity of -2 means a 5% price rise loses 10% of volume. When elasticity is between 0 and -1, revenue rises with price.
Breakeven volume change. With contribution margin m (as a share of price) and a price change x:
- Price rise: maximum volume loss = x / (m + x)
- Price cut: required volume gain = x / (m - x)
| Price change at 40% contribution margin | Breakeven volume change | Arithmetic |
|---|---|---|
| +5% | -11.1% | 5 / (40 + 5) = 5 / 45 |
| +10% | -20.0% | 10 / 50 |
| -5% | +14.3% | 5 / 35 |
| -10% | +33.3% | 10 / 30 |
The asymmetry is the insight: a cut needs far more extra volume than a rise can afford to lose. McKinsey's 2003 article makes the same point, estimating that an average company would need about 18.7% more volume to offset a 5% price cut (official). Combine the formulas: if the expected volume loss from the client's elasticity is smaller than the breakeven loss, the rise pays.
Worked example: pricing a new fastener kit
Prompt (fictional): Bosveld Bevestiging, a Dutch industrial fastener supplier, sells through distributors to facade installers. It has developed a pre-assembled anchor kit that saves installation time and expects to sell 200,000 kits a year. The commercial director asks which pocket price to target and which list price to publish.
Step 1: the three anchors (per kit).
| Anchor | Input | Arithmetic | Result |
|---|---|---|---|
| Cost floor | Variable cost €15, target contribution margin 40% | 15 / 0.6 | €25 |
| Competitor reference | Rival kit, net price paid by installers | Given | €30 |
| Value ceiling | Saves 10 minutes of labor at €60 per hour, plus €2 of avoided rework | 30 + 10 + 2 | €42 |
Step 2: choose a pocket price. Differentiation value is 42 - 30 = €12. Target €35: Bosveld captures €5 and the installer keeps €7 of the advantage, which gives a clear reason to switch. Contribution is 35 - 15 = €20 per kit, a 57% margin (20 / 35).
Step 3: test the price waterfall. Bosveld's existing lines show this walk per €100 of list price:
| Per €100 of list price | Leakage | Running price |
|---|---|---|
| List price | 100 | |
| Standard distributor discount | -15 | 85 |
| Order-size discount | -5 | 80 |
| Quarter-end special | -2 | 78 (invoice price) |
| Annual volume rebate | -6 | 72 |
| Free freight | -5 | 67 |
| Extended payment terms (60 days) | -2 | 65 |
| Co-op marketing allowance | -2 | 63 |
| Consignment stock carrying cost | -2 | 61 (pocket price) |
Pocket price is 61% of list. At a €50 list price on today's terms, pocket price is 50 x 0.61 = €30.50 and contribution is 30.50 - 15 = €15.50. That leaves €4.50 per kit of the target in leakage.
Step 4: tighten the terms for the new kit. Drop the quarter-end special (+2), charge freight below a minimum order (+3, from 5 to 2), apply standard 30-day terms (+2) and skip the co-op allowance (+2). Pocket price rises from 61 to 70 per €100 of list, so a €50 list price yields 50 x 0.70 = €35, the target.
Sizing: 4.50 x 200,000 = €900,000 of extra contribution a year from terms alone, equal to selling 45,000 more kits (900,000 / 20).
Recommendation: "Publish the kit at €50 list with tighter terms to reach a €35 pocket price. That captures €5 of the €12 extra value per kit, earns a 57% contribution margin and adds €0.9M a year over selling it on current terms. The main risk is distributor pushback on freight, so I would test the terms with the three largest distributors first." A leakage audit of existing lines comes next: in McKinsey's lighting-supplier example, invoice prices averaged 32.8% below list, off-invoice items took another 16.3 points, and repricing lifted operating profit 51% in year one (official). A scatter of pocket price against account size, read as in our chart guide, shows which accounts get discounts their volume does not justify.
Worked example: a subscription price rise and churn
Prompt (fictional): WeekBox, a Dutch meal-kit app, charges €50 per weekly box with a variable cost of €30, so contribution is €20 (40%). It plans a 10% rise to €55.
One-off loss. New contribution is €25. Profit stays flat if volume falls to 20 / 25 = 80% of today, so WeekBox can lose up to 20% of subscribers. The formula agrees: 10 / (40 + 10) = 20%.
Ongoing churn. Average lifetime equals 1 / weekly churn. At 2.5% weekly churn a subscriber stays 40 weeks and is worth 40 x 20 = €800. After the rise, matching €800 takes 800 / 25 = 32 weeks, a weekly churn of 1 / 32, about 3.1%. The rise pays only if weekly churn stays below about 3.1%. If WeekBox replaces every lost subscriber with paid marketing, add that acquisition cost to the comparison.
Recommendation: test the new price on new sign-ups in one region for eight weeks and track weekly churn against the 3.1% threshold.
Margin or markup: the mistake that costs points
Margin divides profit by price. Markup divides profit by cost. Markup = margin / (1 - margin).
| Margin | Markup | Check (price 100) |
|---|---|---|
| 20% | 25% | Cost 80, profit 20: 20 / 80 |
| 25% | 33% | Cost 75: 25 / 75 |
| 33% | 50% | Cost 67: 33 / 67 |
| 40% | 67% | Cost 60: 40 / 60 |
| 50% | 100% | Cost 50: 50 / 50 |
When an interviewer says "a 25% margin", confirm the base before you calculate. Our case interview math guide drills these conversions.
Six pricing prompts to practice
- A Belgian museum considers higher weekend ticket prices. Hint: split visitors into tourists and locals before estimating elasticity.
- A German software firm moves from a one-off license to a subscription. Hint: compare five-year revenue per customer, including churn.
- A Dutch dairy cooperative launches a lactose-free cheese. Hint: value anchor against regular cheese and the rival brand.
- A Frisian ferry operator wants higher summer fares. Hint: commuters and tourists react very differently.
- A Danish drug maker prices a treatment that cuts hospital stays by two days. Hint: value the saved bed-days.
- A wholesaler's sales team gives discounts above policy. Hint: build a waterfall per account.
For more prompts, see our case interview questions. Cracking the Case covers three business-case frameworks and three fully worked candidate cases, and The Second Key to the PST adds timed, calculator-free drills.
Frequently asked questions
What is the best framework for a pricing case?
Use the three anchors (cost, competitor, customer value) to bracket the price, then test the choice with breakeven volume and the price waterfall. Tailor the order to the prompt: a new product starts with value, a price change starts with breakeven volume.
What is value-based pricing in a case interview?
Value-based pricing starts from the customer's next best alternative and adds the money value of your product's advantages, such as hours saved or risk avoided. The result is the most a rational customer would pay, and you price below it so the customer still gains.
What is the difference between invoice price and pocket price?
Invoice price is what appears on the bill after on-invoice discounts. Pocket price is what the seller keeps after off-invoice items too, such as volume rebates, free freight, payment terms and marketing allowances.
How do I estimate price elasticity in a case?
Ask for past price changes and the volume response, a customer survey or a competitor's experience. If none exist, state an assumption, run the breakeven volume test, and say which elasticity would make the move unprofitable.
Do pricing cases require a calculator?
No. Interviewers expect calculator-free percentages, divisions and margin math, so choose round numbers and show each step out loud.