Strategic Profitability Analysis

Overview

• What you’ll learn: Customer profitability analysis, the whale curve, customer cost hierarchies, product profitability rankings, and how strategic profitability analysis guides resource allocation.
• Prerequisites: Lesson 4 — Balanced Scorecard
• Estimated reading time: 16 minutes

Introduction

The Grand Historian records: The emperor who treats all provinces equally — sending the same resources to the loyal heartland and the rebellious frontier — will soon lose both. Not all customers are equally profitable. Not all products earn their keep. The art of strategic profitability analysis is the art of seeing through the fog of aggregate numbers to the truth beneath: who creates value, and who quietly destroys it.

Horngren (Chapter 12) introduces customer profitability analysis and strategic profitability analysis as tools that go beyond product-level cost accounting to examine where the organization actually makes (and loses) money.

Customer Profitability Analysis

The Customer Cost Hierarchy

Just as activity-based costing assigns costs to activities, customer profitability analysis assigns costs to customer-related activities:

The Whale Curve

When customers are ranked from most to least profitable and their cumulative profitability is plotted, the result is the famous whale curve: the top 20% of customers typically generate 150-300% of total profits, while the bottom 20% destroy 50-200% of those profits, leaving the net at 100%.

太史公曰：The empire’s treasury report shows modest prosperity. But beneath the surface, the rich provinces of the east generate three times the empire’s wealth, while the border provinces consume twice their share in garrison costs. The net is a thin margin of survival disguised as stability.

Acting on Customer Profitability

For unprofitable customers, options include:

• Repricing: Charge for services currently given away — rush orders, small-batch deliveries, custom specifications.
• Process improvement: Reduce the cost-to-serve through automation, standardization, or shifting to lower-cost channels.
• Volume growth: If the customer has growth potential, current losses may be a strategic investment.
• Firing the customer: When repricing and process improvement fail, the most profitable action may be to politely disengage.

Product Profitability and Sales Mix Analysis

Strategic profitability extends to products and sales mix. A shift in sales mix toward lower-margin products can reduce overall profitability even if total revenue increases. The sales-mix variance isolates this effect:

Sales-Mix Variance = (Actual Mix % − Budgeted Mix %) × Actual Total Units × Budgeted CM per Unit

A favorable sales-mix variance means the actual mix shifted toward higher-margin products; unfavorable means the opposite.

Key Takeaways

• Customer profitability analysis reveals that a small percentage of customers generate most profits.
• The whale curve typically shows top 20% generating 150-300% of profits, bottom 20% destroying value.
• The customer cost hierarchy (unit, batch, sustaining, channel) assigns costs appropriately.
• Options for unprofitable customers: reprice, improve processes, grow volume, or disengage.
• Sales-mix variances measure the profit impact of shifts in product mix.

What’s Next

In Lesson 6, we enter the realm of pricing — beginning with cost-based approaches that build prices from the inside out.