A juice producer experiences declining profits despite 20% annual sales growth after introducing plastic gallon containers. The problem stems from improper cost allocation: plastic gallons have higher direct costs (expensive packaging, skilled labor) and higher overhead absorption, but are priced lower per ounce than cartons. As gallons grow to 60% of sales mix, losses accelerate. The solution requires activity-based costing to properly allocate costs and reprice products.
Key Insights:
- Revenue growth does not guarantee profit growth—always examine the cost structure and product mix
- Cost allocation errors can be hidden by overall volume growth; declining margins are a red flag
- Per-unit or per-ounce pricing comparisons reveal hidden cross-subsidization between product lines
- Overhead allocated uniformly across all units ignores the different cost drivers of different products
- Activity-based costing is essential when products have significantly different production processes and cost structures
- Pricing decisions must reflect full product-specific costs, not just average or blended costs