Improve mental math speed, market sizing accuracy, and quantitative analysis for case interviews.
Programmatic hub
Browse firm-specific, school-specific, and tool-comparison guides.
Pillar hub
Core frameworks, decision trees, and worked examples to structure cases quickly and clearly.
Pillar hub
Mental math, market sizing, and calculation drills to improve speed and accuracy under pressure.
Pillar hub
Firm-specific guides for McKinsey, BCG, and Bain with practical prep priorities and timelines.
Pillar hub
End-to-end examples, high-frequency question patterns, and synthesis templates for live interviews.
Pillar hub
Tool comparisons, budget strategy, and prep-stack recommendations based on stage and timeline.
Master break-even analysis for case interviews. Learn the formula, contribution margin, and work through fully solved examples with real numbers.
Mar 20, 2026
10 guesstimate interview questions with structured solutions, a summary table, and the 5-step framework used at McKinsey, BCG, and Bain for estimation problems.
Mar 20, 2026
Learn ROI, NPV, payback period, and IRR formulas for case interviews. Includes when to use each metric, worked example, and mental math shortcuts.
Mar 20, 2026
Every consulting math formula you need for case interviews: margins, CAGR, break-even, ROI, NPV, and unit economics — with worked examples and when to use each.
Mar 15, 2026
Mental math shortcuts organized by case type: profitability margin calculations, market sizing estimation chains, growth CAGR shortcuts, and pricing tradeoff math. Worked examples for each.
Mar 1, 2026
30 case interview math drills with step-by-step solutions across percentages, break-even, CAGR, market sizing, and profitability. Interactive drill bank with difficulty ratings and business interpretations.
Feb 6, 2026
Learn the 4-step market sizing framework used in 25% of MBB first-round interviews. 6 worked examples (top-down + bottom-up), reference data for 5 countries, and timed practice drills.
Feb 1, 2026
Get faster and more accurate at case interview math. Rounding, shortcuts, and drills for percentages, multiplication, and sanity checks, without a calculator.
Feb 1, 2026
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