Cash Cycles and Funding Growth

Profit matches the revenue you earned in a period against the costs that produced it. Cash follows when money actually moves. A sale can be recognized as revenue before the customer pays; the cash may arrive the following month. Customer pays early instead, and part of that advance has to cover finishing the job.

Ending cash = opening cash + cash actually collected − cash actually paid out.

Lay out your spending calendar and log each cash event at its own date: the loan arriving, principal repayments, the equipment purchase. Cumulate day by day or week by week, find the lowest point the balance ever reaches, and that tells you how much to keep ready. The arithmetic behind per-order contribution and fixed costs lives in Unit contribution and the cost of getting a customer.

Net working capital on a balance sheet is current assets minus current liabilities, a number that folds in inventory and receivables. Before scheduling near-term payments, check when each of those assets can actually become usable cash, and when the debts come due.

When you sell goods out of inventory, the operation splits into three stretches of time: inventory, collection, and payment.

Cash conversion cycle = inventory days + receivables days − payables days.

Picture one order. Goods arrive on day 0. You pay the supplier on day 20. It sells on day 30. The customer pays on day 45. The goods sat for 30 days, then you waited 15 more after the sale, while the supplier gave you 20 days of credit. Your own cash carried the order for 25 days: 30 + 15 − 20 = 25. This transaction is built to show the sequence; in real operations you track average days over a period to see the trend, then arrange money against a concrete payment schedule.

Costco put this pattern in writing in its report for the quarter ending February 15, 2026, where it disclosed that the company often sells its inventory before paying the suppliers. Fast-moving stock plus supplier credit means customer payments re-enter the loop early.

Service businesses can also map the stages of their work: starting inputs, staged delivery, acceptance, payment. Draw the cash timeline directly, prepaid outsourcing fees on their date, wages leaving monthly, the final balance arriving only after acceptance.

Suppose each order costs 840 yuan to deliver, paid up front, with collection 30 days later. Fulfill 100 orders at once and you need 84,000 yuan ready before any of them pays. Fulfill 300 and you need 252,000. The price and cost of a single order haven't moved at all, yet the new orders still demand more advance cash. Wages and rent keep landing on the same calendar.

If orders are steady and the daily outlay stays roughly constant, a rough estimate is daily outlay × days until collection. When buying happens in batches, the season swings hard, or several big orders land at once, cumulate collections and payments by date instead.

After any change, recompute profit and the cash timeline together. A discount pulls payment earlier but leaves less per sale. Split purchases shrink the cash sitting in stock but may raise per-unit freight. Put amounts and dates side by side before choosing.

Full worked example: Every Order Makes Money. Why Does More Business Leave You Short on Cash?. Reading path: From Finding Customers to Making Money; when deciding on the next round of investment, continue at Opportunity Cost and Staged Investment. For household reserves, see Income Concentration and Cash Reserves; for payments and compensation in collaborative delivery, see Intermediary Value and Delivery Responsibilities. When hiring a team, compare advance funding needs with new labor costs and operating income in Why a business that makes money solo gets harder once you hire.