In 2025, Mercadona reported revenue of €41.858 billion with a gross margin of 25% on net sales, well below Consum's 30.1% or Eroski's 27%. However, its net profitability far exceeds that of its competitors. This financial paradox is a perfect case study for three-dimensional visualization of economic data, where volume displaces margin as the driver of profit.
3D simulation of margins and comparative profitability 📊
To represent this dynamic, we propose an interactive 3D infographic with three axes: gross margin percentage (Z-axis), net sales volume (X-axis), and final net profit (Y-axis). Instead of simple bars, we will use three-dimensional cylinders where height represents the margin and diameter represents the cash volume. A heat map on the base plane will show the operational efficiency of each chain, highlighting how Mercadona, with a lower but wider cylinder, generates a profitability peak higher than its rivals. An animated dashboard will allow the user to scroll through time to see the evolution of these indicators since 2020.
Why the small margin beats the big one in 3D 🚀
The visualization reveals a clear pattern: chains with higher margins per product (Consum, Eroski, Dia) have tall but narrow cylinders, which limits their total revenue volume. Mercadona, on the other hand, bets on a wide, low cylinder, maximizing the base area (sales) to compensate for the height (margin). This high-volume, low-unit-margin strategy generates a multiplier effect that, when represented in three dimensions, shows how logistical and purchasing efficiency crushes the competition in terms of absolute net profit.
How can a 3D visualization model of Mercadona's value chain represent the paradox that a gross margin of 25% generates higher absolute profitability than competitors with margins above 30%?
(PS: financial virtual reality: where you can watch your money disappear in high definition)