How to calculate and improve your product margins accurately

Many Indian manufacturers know their total business profitability but not their product-level profitability. They know the company made ₹50L last year, but they don't know which products made money and which lost it. Product-level margin analysis often reveals that 20–30% of a company's product range is loss-making — and the rest of the business is subsidising it.

Build a product cost model. For each product, calculate: direct material cost (bill of materials at current prices), direct labour cost (time per unit × labour rate), variable overhead (machine hours per unit × variable overhead rate), and fixed overhead allocation (total fixed overhead / total production volume × per-unit allocation). This gives you the full absorption cost per unit.

Compare cost to selling price by product. Your gross margin per product (selling price minus full cost) reveals which products are margin-positive and which are margin-negative. Products with negative margins are destroying value — unless they serve a strategic purpose (loss leaders, relationship products, new market entry), they should be repriced or discontinued.

Don't rely on blended margins. A company with a 12% overall gross margin might have products ranging from -5% to +35%. The blended number hides the full picture. Reviewing margins by product, by customer, and by channel reveals where your profitability actually comes from.

Update your cost model when input costs change. Most companies build a product cost model once and don't update it as raw material prices, labour rates, or overhead structures change. A cost model that's 18 months old and hasn't been updated for cost increases gives you false confidence about product profitability.

Use margin analysis to drive pricing and product mix decisions. If you have capacity constraints, allocating that capacity to your highest-margin products is a strategic decision that immediately improves profitability without changing anything else. The data tells you where to focus.

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