Crack Profitability Cases
Profitability is the most common case type in an MBB interview and the one candidates most often think they handled well when they didn't. Reciting profit = revenue minus cost is not a structure. It's a definition, and every interviewer has heard it. The score comes from the next ninety seconds: where you cut, what data you ask for, and how fast you get to the driver that actually moved. What we work on: (1) Building the tree that fits the business. Price, volume, mix and channel do not decompose the same way for a subscription business and a heavy manufacturer. Picking the wrong branch costs you the case in the first two minutes. (2) Isolating the driver. Segmenting revenue and cost until the problem sits in one box, and knowing which comparison — year over year, versus competitor, versus segment — actually proves it. (3) The math you will be handed. Break-even, contribution margin, price-volume tradeoffs, fixed versus variable. Clean, and out loud. (4) Turning the number into a recommendation. Most candidates find the driver and stop there. The offer comes from what you say after it. (5) Handling the pivot. Interviewers move the goalposts mid-case on purpose. Every rep here is live, timed, and interrupted. I ran these as a McKinsey interviewer. I'll tell you where you actually lost points.
What's included
- Live, timed profitability cases — not worked examples on paper
- A profit tree you can build on the spot for any business model
- Break-even, margin and price-volume math done cleanly, out loud
- Feedback from a former McKinsey interviewer on where you actually lost points
Meet your expert
Ben L.
Top McKinsey Interviewer | Quant Skill-Building & PEI Pro | 50+ MBB Offers
• Stanford GSB Alum, Class of 2021 -- see relevant background & experience below: • Coaching | Advised 400+ admits into Stanford GSB, HBS, Wharton, Kellogg, MIT Sloan, INSEAD, Haas, and more (230+ Leland reviews), while teaching multiple courses through Leland • What I'm Doing Now | Based in NYC, building a publication 'Staying Human', working on a stealth, marketplace startup, coaching and playing chess profssionally, and advising a slate of Seed to Series C startups through Elevate LLC • Public Policy | Prior to Stanford, worked on the Policy Team for the Chicago Mayor's Office under Mayor Rahm Emanuel, focusing on 5G infrastructure policy, criminal justice policy, and citywide corporate/economic development deals • McKinsey | Before policy, worked at McKinsey & Co , with casework focused on job training for the formerly incarcerated and workforce development for at-risk youth • PE / VC / Startup Advising | After Stanford, worked in Bain's Private Equity Group on various due diliegences, managed deals with several venture capital firms, and advised multiple startups on growth and go-to-market strategy • Professional Writing | Speechwriting in public policy & political environments, Lead Editor for Nondisclosure (Stanford GSB's magazine) and Managing Editor for the Stanford International Policy Review • Additional Writing | Crafting op-eds, ghostwriting for major publications, developing a fictional short story collection, policy deep dives, a book on chess applications to life, and application essays of all sorts • GMAT / Test-Taking | Scored in the highest percentile of GMAT test-takers, but more importantly I've honed my ability to help others extrapolate top test-testing strategies in the areas they're weakest • Additional Coaching Details | 5+ years experience working with >750 individuals on essay writing and resume professionalization for top consulting firms, MBA programs, execs, and the broader job market • Interview Training | I was interview-trained with McKinsey, helping me give high-quality mock interviews for MBBs and any MBA program; I've also held 10+ events through Leland on interview prep for McKinsey's PEI and GSB's interview process in particular
