My constellation

Each star is a skill. Rings run from student (centre) to CEO (edge): every level's knowledge contains the inner levels'. The filled area is your mastery radar.

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Skills, required level and current mastery
Skills, required level and current mastery
SkillDomainYour levelMastery
Gross vs net revenueTell what was billed (gross revenue) from what the company actually keeps after taxes, fees and denials (net revenue).Revenue & priceStudentNot practised yet
Volume × priceSee revenue as two levers — units sold and price — and know which one explains a change.Revenue & priceJunior analystNot practised yet
Deductions & denialsSpot what erodes revenue before it reaches cash: sales taxes, card fees and payer claim denials.Revenue & priceMid-level analystNot practised yet
PricingJudge the effect of a price change on results and recognise when lost volume can cancel the gain.Revenue & priceSenior analystNot practised yet
Fixed vs variableSeparate costs that grow with every sale (inputs, materials) from those that exist with no sales at all (payroll, rent).Costs & marginStudentNot practised yet
Contribution marginWork out what each sale leaves to pay for the fixed structure: net revenue minus variable costs.Costs & marginJunior analystNot practised yet
Break-evenFind the minimum monthly volume at which operations stop losing money, and the margin of safety above it.Costs & marginMid-level analystNot practised yet
Unit costBreak down the cost of each unit and see how waste, scrap or high food cost make everything you sell dearer.Costs & marginSenior analystNot practised yet
Reading the P&LRead the income statement top to bottom: from revenue, through costs and expenses, down to profit.Income statementStudentNot practised yet
EBITDA & marginInterpret EBITDA and operating margin to tell whether the business itself pays its way before interest and tax.Income statementJunior analystNot practised yet
Depreciation & EBITTreat depreciation as asset wear: it lowers profit without leaving cash this month, and separates EBITDA from EBIT.Income statementMid-level analystNot practised yet
Interest, tax & profitFollow how interest and taxes turn operating income into net income.Income statementSenior analystNot practised yet
Profit ≠ cashExplain why a profitable company can run out of money: profit is accrual, cash is when money actually moves.Cash & working capitalJunior analystNot practised yet
Working capitalMeasure the cash tied up in receivables and inventory, minus what is owed to suppliers (DSO, DIO, DPO).Cash & working capitalMid-level analystNot practised yet
LiquidityTrack cash month by month, find the year's low point and make sure there is enough runway to get through it.Cash & working capitalSenior analystNot practised yet
Cash stress testingSimulate shocks (customers paying later, falling sales) and measure how long cash holds before it runs out.Cash & working capitalManagerNot practised yet
CAPEX & depreciationTreat investment (CAPEX) as an immediate cash outflow that becomes expense gradually, through depreciation.Investment & capitalMid-level analystNot practised yet
Debt & interestUnderstand the cost of debt: how balance, rate and repayment affect interest, profit and cash.Investment & capitalSenior analystComing soon
Expansion decisionsDecide whether adding capacity pays off by weighing the investment against the margin gain and the cash impact.Investment & capitalManagerComing soon
Capital structureBalance equity and debt to fund growth without putting solvency at risk.Investment & capitalExecutive (CFO/CEO)Coming soon
What-if scenariosBuild what-if scenarios — price, volume, costs — and compare the outcome with the base case.Planning (FP&A)Senior analystNot practised yet
SensitivityFind which levers move results the most when they change, and focus management attention there.Planning (FP&A)ManagerNot practised yet
Seasonality & forecastBuild seasonality into projections and update the forecast as the year unfolds.Planning (FP&A)ManagerComing soon
Strategic trade-offsWeigh growth, margin and liquidity in decisions with no single right answer, and justify the choice.Planning (FP&A)Executive (CFO/CEO)Not practised yet
Variance vs baseCompare actuals with the base case or budget and point to the line that deviated most.ControllershipJunior analystNot practised yet
Root causeTrace a variance back to its origin — volume, price, cost or terms — instead of stopping at the symptom.ControllershipMid-level analystNot practised yet
KPIs & targetsPick the right indicators for each area, set targets and follow them with discipline.ControllershipManagerNot practised yet
Assumption governanceChallenge and document the assumptions behind the numbers so decisions stand up to an audit.ControllershipExecutive (CFO/CEO)Coming soon