Business maths,
priced.valued.audited.optimised.scaled.forecasted.modelled.decided.done.
Break-even, business loans, NPV & IRR, margins, CAGR, burn rate, LTV:CAC, valuation — the timeless corporate toolkit on one desk. Slide or type the numbers, pick your country & currency inside each table, and every answer shows its working. Nothing to upload, nothing stored — the maths runs entirely in your browser.
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every receipt below is live — go on, slide something ✍
Welcome to the boardroom desk. Every calculator here runs the standard, textbook formulas — the same ones printed in CFA, CA and MBA literature — with nothing hidden. Each table carries its own country & currency picker (auto-set for you). Built for founders, promoters, CFOs, analysts and everyone who signs the numbers. No uploads, no storage, no rule-books to chase — only maths that does not expire.
Break-even analysis
where losses endThe first number every business must know: how many units before the money stops flowing out and starts flowing in.
BEP units = Fixed ÷ (Price − Variable)
ca’s corner: price below variable cost and every extra sale is a fancy way to lose money.
Profit & margin calculator — gross · operating · net
the health reportThree margins, one story: how much the product earns, how much the business earns, and how much is left for the owners.
GP = Rev − COGS · OP = GP − Opex · Net = OP + Other
ca’s corner: revenue is vanity, profit is sanity, cash is oxygen — track all three.
Markup ↔ margin converter
price with intentThe classic mix-up that eats shopkeepers alive: a 40% markup is NOT a 40% margin. Price precisely, in one slide.
Price = Cost × (1 + markup) · Margin = (Price − Cost) ÷ Price
ca’s corner: a 40% markup is only a 28.6% margin — know which one you are quoting.
Burn rate & runway calculator
startup oxygenHow many months of life are left in the bank account — and the calendar date the money runs out. Founders’ maths 101.
Burn = Outflow − Inflow · Runway = Cash ÷ Burn
ca’s corner: runway is oxygen: below six months, fundraise or cut — decide early.
Inventory & EOQ calculator — order just right
the stocking sumOrder too often and fees eat you; too rarely and the godown eats you. The economic order quantity is the truce.
EOQ = √(2 × D × O ÷ H)
ca’s corner: ordering too often bleeds fees; too rarely bleeds warehouse — the EOQ is the truce.
LTV : CAC calculator — are customers worth buying?
unit economicsThe one ratio investors zoom into: lifetime value vs acquisition cost. Below 3× and growth is just expensive hobby.
LTV = Rev × GM ÷ Churn · healthy ≥ 3× CAC
ca’s corner: if a customer costs more than they return, you are buying work, not building a business.
Business loan EMI — term loans, machinery, working capital
fund the machineTerm loans power factories and fleets. See the true EMI, and what the processing fee really adds to the cost of money.
EMI = P × i × (1+i)ⁿ ÷ ((1+i)ⁿ − 1)
ca’s corner: a cheaper EMI over more years usually costs more — compare totals, not months.
NPV · IRR · Payback — project appraisal desk
the analyst’s yardstickThe three questions every capital decision must answer: what is it worth today (NPV), what return does it earn (IRR), how fast does it pay back.
NPV = Σ CFₜ ÷ (1+r)ᵗ − C₀ · IRR: NPV = 0
ca’s corner: a project with IRR above your cost of funds is a yes — the size decides how big a yes.
CAGR calculator — compounded annual growth
growth, decantedRevenue doubled in five years? Good — but CAGR says what it really means per year. The honest growth number.
CAGR = (End ÷ Begin)^(1÷yrs) − 1
ca’s corner: CAGR smooths the drama — always ask what happened inside the average.
ROCE · ROE · ROA — returns on capital
return on the machineIs the business a good machine? Three lenses on the same question: returns on the capital employed, the owners’ money, and every asset.
ROCE = EBIT ÷ Capital Employed · ROE = NP ÷ Equity
ca’s corner: ROCE above your borrowing cost means the machine earns its keep.
Business valuation — multiples & terminal value
what is it worth?Two ways professionals price a business: what the sector pays for its EBITDA, and what its future cash is worth today. Triangulate.
EV = EBITDA × Multiple · TV = FCF × (1+g) ÷ (d − g)
ca’s corner: a valuation is an argument, not a fact — build it on two methods, not one.
The formula shelf — every desk’s maths, one glance
pin it to the notice boardThe whole boardroom in eight lines each — the same formulas the desks above run, printed for the meeting notes.
profitability & returns
appraisal & operations
ca’s corner: formulas never sign the cheque — judgement does. These just keep the judgement honest.
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