Cash, growth and profit as one system: reading the trade-offs and finding the constraint that binds your business today

Most Indian owners watch sales every day, see profit once a year when the CA finalises the books, and notice cash only when the overdraft limit is full. These three numbers are not separate scorecards: every rupee of growth locks cash into stock and debtors, every rupee of profit is the main fuel for the next round of growth, and every rupee of cash buys time and bargaining power. This lesson teaches you to read cash, growth and profit as one system and to name the single constraint holding your business back right now, so that your next decisions fix the right problem.

What you need to know

Define the three numbers precisely. Loose definitions cause bad decisions, so fix them before you analyse anything.

• Cash is money you can use this week: bank balances plus the undrawn part of sanctioned limits, minus cheques issued but not yet cleared and statutory dues already payable (GST, TDS, PF/ESI). Debtors and stock are not cash.
• Growth is the change in sales against the same period last year. Split it into volume and price wherever you can; 15% growth made of a 12% price increase and 3% more units is a very different business from 15% more units.
• Profit has three levels in this programme: contribution (sales minus variable costs such as material, freight and commission), operating profit or EBITDA (contribution minus fixed costs such as salaries, rent and overheads), and net profit after interest, depreciation and tax.

How the three pull on each other. Growth consumes cash before it produces it. A quick estimate: extra working capital ≈ extra sales × net working capital days ÷ 365. If your debtor days plus stock days minus creditor days come to 60, an extra ₹1 crore of annual sales needs about ₹1,00,00,000 × 60 ÷ 365 = ₹16.4 lakh sitting in the business before the extra profit arrives. Profit produces cash, but only after working capital, capital purchases, loan repayments, tax and your drawings have taken their share. Cash, in turn, protects profit: an owner with no cash buys in small lots at worse prices, accepts customers' terms and misses early-payment discounts.

What happens when you chase one number alone.

• Growth alone leads to overtrading: rising sales, rising debtors, a stretched overdraft and one late customer away from a crisis.
• Profit alone leads to stagnation: a comfortable margin on a shrinking base while competitors take your best customers.
• Cash alone leads to hoarding: a fat fixed deposit, an ageing machine and a team with no reason to stay.

Cash conversion connects profit to cash. Operating cash flow ≈ EBITDA − increase in net working capital − tax paid. Divide it by EBITDA to get your conversion ratio. If EBITDA is ₹50 lakh, working capital rose by ₹30 lakh and tax paid was ₹8 lakh, operating cash flow is ₹12 lakh and conversion is 24%. A common rule of thumb is that a stable business should convert most of its EBITDA into cash over a year; a ratio stuck below about half means your profit is being parked in debtors and stock.

The four states of a business.

1. Cash-constrained: profitable and growing but short of cash. Signs: overdraft fully used, suppliers chasing you, low conversion. First lever: working capital and the pace of growth.
2. Profit-constrained: growing, cash acceptable (often because of borrowing), but margins thin or falling. Signs: contribution margin sliding, discounts and schemes rising. First lever: price, product mix and variable cost.
3. Growth-constrained: profitable, cash-rich, flat sales. Signs: idle balances, ageing customer base, no new products in years. First lever: invest in growth engines.
4. Fragile: all three weak. First lever: survival — protect a cash floor and stop loss-making activity.

The binding-constraint rule. Only one constraint binds at a time, and effort spent on the others returns little. When you are unsure, use this priority order: cash floor first (a business survives low profit for a while but not zero cash), then unit profit (growth multiplies whatever margin you have, good or bad), then growth.

Five diagnostic numbers to keep on one page: months of fixed-cost cover (available cash ÷ monthly fixed costs), cash conversion ratio, contribution margin trend over three years, sales growth split into volume and price, and net working capital days.

This lesson is education, not financial advice; work through your own figures with your CA before acting on them.

Step-by-step method

1. Collect the last three years' financial statements and the last 12 months of management figures (sales, purchases, bank statements, debtor and stock lists).
2. Calculate sales growth for each year and, where you can, split it into price and volume.
3. Calculate contribution margin % and EBITDA % for each year. If you do not track variable costs separately, estimate them line by line with your accountant.
4. Calculate net working capital (debtors + stock − creditors) at each year-end and the change year on year.
5. Calculate operating cash flow ≈ EBITDA − increase in net working capital − tax paid, and the conversion ratio.
6. Calculate months of fixed-cost cover from today's available cash.
7. Write your own thresholds (for example, "cash-constrained if cover is under two months or conversion under 50%") and place the business in one of the four states.
8. Complete this sentence: "Our binding constraint is _ because _."
9. Choose two decisions for the next 90 days that attack that constraint directly, and one activity to stop.
10. Repeat the diagnosis every month; the binding constraint moves as you fix it.

Common mistakes

• Judging the health of the business from the sales figure and the year-end profit, while never calculating how much cash that profit actually produced.
• Counting the undrawn overdraft or cash credit limit as your own money and planning growth against it; the bank can review or reduce it at renewal.
• Blaming "slow collections" when the real cause is a new channel or customer type that structurally pays late.
• Trying to fix cash, profit and growth together with ten initiatives, so none gets the owner's attention it needs.
• Reading value growth as success in a year when prices rose faster than volumes, hiding a loss of customers.

Ask the AI Business Tutor

• "My business is a [sector] in [city] with sales of ₹[amount]. Last year EBITDA was ₹[amount], debtors went from ₹[x] to ₹[y], stock from ₹[x] to ₹[y], creditors from ₹[x] to ₹[y], tax paid ₹[amount], and I have ₹[amount] of available cash against monthly fixed costs of ₹[amount]. Calculate my cash conversion and cover, tell me which of the four states I am in, and suggest two 90-day decisions that address the binding constraint, showing your arithmetic."