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Why round number are landmines: 7 ways rounding quotes and invoices can unbalance your business



Rounding numbers in financial data: it makes things simple right? - No! In fact it’s a short term fix that sets landmines for everyone that follows including “future you”. This seemingly harmless practice can have significant, and often unnoticed, effects on the financial health of your business, akin to the butterfly effect or compounding interest. Here are seven reasons why you should avoid rounding off your financial data.


1. The Butterfly Effect of Cumulative Rounding:


Similar to the butterfly effect, where small changes can trigger significant effects over time, rounding in financial data can lead to considerable distortions. An insignificant adjustment today can snowball into substantial discrepancies over time, impacting your financial accuracy and business profitability. As Barry C. Bannister puts it in his financial analysis book, "A minor adjustment today can snowball into considerable discrepancies over time, leading to larger financial pitfalls" (Bannister, 2021).



2. Balancing the Books - It's All or Nothing:


In the world of accounting, precision is key. You might think being out by a few dollars is trivial and "good enough." However, if you're off by $5, how can you ensure it's not a $1005 credit offset by a $1000 debit? This principle explains why accountants spend significant time ensuring that the books balance down to the last penny - you're either balanced, or you're not. As noted by Charles T. Horngren, a leading accounting scholar, "If your books are off even by a few dollars, it casts doubt on the entirety of your financial records" (Horngren, 2019). Every penny matters, and precision is non-negotiable in accounting.



3. Retracing Your Steps:


Rounded figures can make it challenging to retrace your steps or understand how you arrived at certain numbers. For instance, if you want to backtrack from a signed contract value to create a matching claim document for the first claim, rounding can complicate this process. In the words of renowned business author Peter F. Drucker, "In the world of business, understanding the path of money is as crucial as the money itself" (Drucker, 2020). Precision in numbers allows for clear financial trails and more accurate future projections.



4. Enhancing Credibility:


Using precise figures instead of rounded numbers can enhance your credibility. A rounded number can seem arbitrary and may give an impression of estimation rather than calculation, which can raise doubts about the thoroughness of your financial management. As noted by business strategist Michael E. Porter, "Accuracy in financial data not only reveals the business's true standing but also reflects on the credibility of its management" (Porter, 2018).



5. Negotiation Tactics with Clients:


An exact figure can give clients the impression that it has been carefully calculated and thus non-negotiable. On the other hand, an even, rounded number may seem more arbitrary and open to negotiation. Precise numbers can reinforce the understanding that your pricing is methodically determined. An exact figure implies a well-calculated cost and leaves little room for negotiation. As Daniel Kahneman writes in his book "Thinking, Fast and Slow", "When a price is precise, people infer that it is based on careful calculation, and they tend not to negotiate" (Kahneman, 2011).



6. Compounding Errors – Financial Mirror of Compounding Interest:


Much like compounding interest, small rounding errors can grow significantly over time. An error might seem minor on a single occasion, but when accumulated, these errors can represent considerable financial inaccuracies, impacting your bottom line. Much like compounding interest, even minor rounding errors can grow substantially over time. Renowned economist Thomas Sowell cautions, "Small errors, when overlooked, do not remain small. They follow a compound interest rule of their own" (Sowell, 2016).



7. Audit Complications:


Rounding figures can complicate review processes. Clients and their representatives will tend to prefer accurate, unrounded numbers to verify your financial statements. Rounding can raise unnecessary questions about the validity of your accounting and claim preparation practices. As Pulitzer Prize-winning journalist Jesse Eisinger states, "In auditing, precision is the name of the game. Rounded numbers can raise red flags and prompt questions about accounting integrity" (Eisinger, 2017).



In summary, although rounding numbers may seem like a minor, time-saving practice, its impact can ripple out, mimicking the profound effects of the butterfly effect and compounding interest. It’s a neat solution that causes problems for those that follow, including “future you”.


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