The 6 Numbers Every Business Owner Should Know Cold

A KPI, Key Performance Indicator, is not a number on a report. It is a number that changes a decision. Most owners have hundreds of figures available and almost none they can recite from memory, which is backwards. You do not need a bigger dashboard. You need 6 numbers you know so well that when one drifts, you feel it before the spreadsheet confirms it.

Here are the 6, grouped by the question each one answers. Learn them cold and you will run the business with your eyes open.

1. Gross margin. This is revenue minus the direct cost of delivering it, expressed as a percentage. It is the truest measure of whether your core offer works. A business can grow revenue for years while gross margin quietly slips, and by the time it shows up in the bank account the damage is done. Know your gross margin percentage and watch it monthly. A falling margin is the earliest warning of trouble.

2. Break-even. This is the revenue you need to cover all your costs, the point where you stop losing money and start making it. Knowing your break-even tells you, on any given day of the month, whether you are ahead or behind. Owners who know this number make calmer decisions, because they can see exactly how much cushion a slow month leaves.

3. Cash on hand and runway. Cash on hand is what is in the account. Runway is how many months that cash lasts at your current burn if income stopped. Together they are your survival number. Profit can wait. Cash cannot, and the owners who get caught short are almost always the ones who could not have told you their runway off the top of their head.

4. Days sales outstanding, or DSO. This is the average number of days it takes to collect after you invoice. A rising DSO means cash is arriving slower even if sales look fine, and it is often the first sign of a cash squeeze forming. Watch this number and you will catch collection problems while they are still small.

5. Customer concentration. This is the share of your revenue that comes from your largest customer or two. If one customer is 40% of revenue, you do not own a business so much as a very demanding relationship. Knowing this number tells you how exposed you are to a single phone call going the wrong way, and it is one of the first things a lender or buyer will check.

6. Revenue per employee. This is total revenue divided by headcount. It is a quick read on efficiency and on whether you are adding people faster than you are adding output. When this number falls as you grow, it is a signal that overhead is outrunning the business, which is exactly how scaling companies lose their margin.

Know them cold. Notice what these 6 have in common. 2 tell you if the model works, 2 tell you if you will survive the quarter, and 2 tell you what could sink you. That is the whole picture in 6 figures.