Business
Challenge:

Mitigating Margin Erosion for a Retail Client

The client is a leading retail organization operating across multiple locations, with a diverse portfolio spanning FMCG, Electronics, Garments, and Household categories. Promotions are a core part of their sales strategy, driving customer engagement and revenue growth. Maintaining healthy margins is critical to sustaining profitability in a high-volume retail environment. 

During the fiscal year, the client experienced a 1.5% decline in gross profit margin compared to the previous year. Although sales volumes also declined, the sharper drop in profitability indicated margin erosion beyond the impact of reduced sales. The client sought deeper clarity on the factors driving this decline and areas requiring intervention.

TurnB Approach


TurnB worked closely with the client to identify the drivers of margin erosion and enable targeted, data-driven corrective actions. The key objectives were to understand the root causes behind the margin decline, assess the impact across categories, channels, and locations, and deliver actionable insights to strengthen future profitability. 

 

To achieve this, TurnB applied a structured margin decomposition methodology, breaking down margin changes into three components:

  • Margin Effect: Changes in product-level profitability
  • Mix Effect: Shifts in sales composition across products, channels, and locations
  • Residual Effect: Other contributing factors beyond margin and mix

Using this framework, TurnB conducted a multi-layered analysis across sales channels (regular, promotional, and corporate), locations, sections, categories, and brands. This approach went beyond surface-level diagnostics, uncovering precise drivers of margin erosion and enabling focused interventions. 

Approaches background
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Implications

The analysis provided the client with a clear, data-driven understanding of margin decline, empowering targeted actions to improve profitability: 

  • Promotional Effectiveness Insights: Identified the impact of promotional depth and frequency on margins, enabling more disciplined and profitable promotional strategies.
  • Precision Interventions: Highlighted specific sections, categories, and brands requiring pricing adjustments or cost optimisation.
  • Ongoing Margin Management: Established a structured framework for continuous margin monitoring, supporting proactive decision-making and reducing the risk of future unplanned margin erosion.

Through this disciplined and analytical approach, TurnB helped the client strengthen margin governance while supporting sustainable revenue growth.

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