Logika i Wynik
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3 Traps in Sales Reports that Cost 2,150 zł a Month

By Marek Nowakowski, Data Analyst·December 5, 2024·8 min read

A wholesaler owner in Radom was convinced he was earning 14% on every shipped item. After our analysis, it turned out that due to minor errors in tables, he was losing exactly 2,147.30 zł every month. Numbers don't lie, but only when you look at the right columns in your Excel.

Trap No. 1: Confusing Markup with Margin

This is the most common mistake we encounter in trading companies, not just in Radom. Most entrepreneurs we talk to use these words interchangeably, and it's a mistake worth thousands of zlotys. You add markup to the purchase price, and you calculate margin from the sales price. If you buy something for 100 zł and sell for 125 zł, your markup is 25%, but the margin is only 20.1%. These few percentage points of difference are often the entire amount that should stay in your pocket at the end of the month as pure profit.

In July 2024, we analyzed reports for a local spare parts distributor. Their system automatically suggested prices based on a fixed markup, but no one checked the real margin after deducting discounts for regular customers. The effect was that with 418 transactions a month, the company was actually subsidizing the logistics of the cheapest products. That much stays in your pocket as you actually calculate after subtracting all variable costs, not what an optimistic sales program displays.

Remember that the bank doesn't accept percentages, only specific zlotys. If your sales report shows a 30% profit and the account is short on cash for invoices, you are probably falling into this trap. It's worth spending 17 minutes every week manually checking the margin on five random products from your range. This is the simplest way to catch errors in the system before they grow into a serious financial problem.

Margin is not the same as markup. This error cost our client from Radom exactly 2,147.30 zł in one month.
Trap No. 1: Confusing Markup with Margin

Trap No. 2: Forgotten Logistics and Packaging Costs

Most sales reports we get for audit end at the product price minus the purchase cost. This is a huge simplification that destroys financial liquidity. Hardly anyone includes in the unit report the cost of adhesive tape, cardboard, or the time of a warehouse worker who packs the box. On a small scale, it's pennies, but with 1,237 orders a month, those pennies turn into an amount that could buy a decent used delivery van.

Honestly, most business owners are afraid to count these details because they know the result will hurt. In one production company at Kielecka Street in Radom, we checked that the cost of packaging and labeling alone rose by 11.4% in the last quarter. No one updated the cost sheet, so every shipped package earned 3.20 zł less than assumed. With their volume, this produced a loss at the level of 3,958 zł a month relative to the planned budget.

We check facts, not promises from packaging manufacturers or courier companies. If your contract with the courier has a hidden fuel surcharge that changes every month, you must include it in your report. Otherwise, your profitability data is simply untrue. A report that ignores additional costs is just a pretty piece of paper that gives a false sense of security while money leaks from the company unnoticed.

Trap No. 2: Forgotten Logistics and Packaging Costs

Trap No. 3: Two-Week-Old Data is Just History

Making a decision to buy goods on Wednesday based on a report from the previous Monday is like driving a car with the windshield covered, looking only in the rearview mirror. The market changes fast. Prices from suppliers can jump by 4.7% in a single night. If your sales report does not update at least every 24 hours, you have no control over the business. You only see what has already happened and what you cannot change.

At Logika i Wynik, we have seen dozens of companies that ordered stock in advance because 'the report showed high demand'. Except the report showed sales from a promotion period that ended 11 days earlier. Result? A warehouse full of goods that won't move, and 43,600 zł frozen that is needed for current payments. Data timeliness is not a luxury; it's a basic requirement for survival in a market where competition doesn't sleep.

Perhaps you think you don't need fast reports because you know your business by heart. This is the most common argument we hear before starting cooperation. Then we show specific numbers and it turns out the owner's intuition was off by 12-15% in key product categories. Checking facts every day at 8:15 AM takes only a moment and allows for avoiding wrong purchasing decisions that hurt for months.

Decisions based on old data are like tea-leaf reading. Your competition checks results every morning.
Trap No. 3: Two-Week-Old Data is Just History

How We Checked This for a Construction Industry Client

In March 2024, Mr. Janusz, owner of a construction materials outlet near Radom, approached us. He had 14 employees and turnover around 480,000 zł per month, but at the end of the month, less than 7,000 zł of pure profit was left in the register. Janusz didn't understand where the money was disappearing since sales grew by 8% year-on-year. We prepared a simple sheet for him that combined data from the cash register with current purchase prices from 12 main suppliers.

It turned out that three key groups of goods — polystyrene adhesives, machine plasters, and some types of screws — were sold with a margin of only 2.3% after deducting transport costs to the customer. Janusz thought he was earning 15% on them. Through 11 months of operating this way, he lost a potential profit of over 27,400 zł. Numbers don't lie — after price correction and logistics changes, his profit in May 2024 rose to 16,340 zł with the same sales.

Heads-up: Raising prices isn't always the solution. Sometimes it's enough to change the supplier or limit free transport for orders below 1,500 zł. Both helped Mr. Janusz. Now every Tuesday he gets a short report on his phone: how much he earned yesterday, how much stock he has, and how much VAT he must pay soon. No fluff, no complicated charts, just pure logic and financial result.

How We Checked This for a Construction Industry Client

Simple Steps You Can Do Today in 19 Minutes

You don't have to immediately buy expensive software for 11,000 zł to start controlling your results. The first step is to diligently list all your company's fixed costs and divide them by the number of working days in the month. If you run an office in Radom, include rent, electricity, social security for yourself and employees, and every lease installment. You will then find out how much your company 'costs' you every morning before you even open the doors for the first customer.

The second thing is verifying real purchase prices. Check the last 3 invoices from the main supplier and compare them with the prices you have entered in the sales system. You will be surprised how often these numbers do not match by 1 or 2 zlotys per unit. With high turnover, this is where your money is hidden. That much stays in your pocket as you actually monitor against such minor office mistakes.

Finally, set aside one day a week — preferably Thursday at 2:00 PM — to review outstanding payments from customers. A sales report that includes invoices unpaid for 30 days is worthless. That's not your earning; it's a loan you gave someone for free. If you want to really increase profit, you must know how much cash actually flowed into your mBank or PKO account, and not just how much stock left the warehouse.

Simple Steps You Can Do Today in 19 Minutes

Numbers Don't Lie – Your Next Step

At Logika i Wynik, we don't believe in magic ways to succeed. We believe in mathematics and hard data. If your reports don't give you a clear answer to the question 'how much did I earn net today?', it means they need improvement. Don't lose another 2,150 zł this month just because you're afraid to look deep into your tables. The truth about your finances can be painful, but it's the only path to real company growth.

We invite you for a short coffee talk in our office at Malczewskiego 20 in Radom. We will show you how in 14 days we organized the chaos in numbers for clients similar to you. No fluff and no corporate speak. We focus on making sure your cash at the end of the month adds up. Every hour of delay is real money you lose forever.

To sit at the table with us and check your numbers, you don't need a PhD in economics. You only need the will to stop guessing and start knowing. Contact us today, and within 48 hours we will prepare a preliminary assessment of your sales reports for you. It's the first step to finally feeling like you have full control over every zloty in your business.

Numbers Don't Lie – Your Next Step