---
id: "contrarian-total-cost-fallacy"
type: "contrarian-insight"
source_timestamps: ["§ Avoid These Common Mistakes"]
tags: ["accounting", "pricing"]
related: ["concept-variable-cost-pricing-floor", "claim-incremental-profit-variable-cost"]
challenges: "The accounting-driven mandate that all prices must reflect fully loaded costs to be viable."
sources: ["commercial"]
sourceVaultSlug: "hbr-seg-commercial"
originDay: 5
articleStem: "hbr-ext-22-art-of-discounting"
sourceUrl: "https://hbr.org/2026/05/the-art-of-discounting"
sourceTitle: "The Art of Discounting"
---
# Prices do not need to cover total costs

**Conventional wisdom it challenges:** the accounting mandate that *every* unit sold must cover its fully loaded cost (variable + overhead).

**The inversion:** as long as the business *as a whole* covers its costs, marginal **discounted** units only need to clear **variable cost** to add profit — see [[concept-variable-cost-pricing-floor]] and [[claim-incremental-profit-variable-cost]].

**Steelman / counter (enrichment):** variable-cost-floor thinking is *directionally* right but dangerous if applied without limits — it can ignore **capacity constraints, channel conflict, fixed-cost recovery, and competitive responses.** "Anything above variable cost is always good" is not universally true; the safe reading is that variable cost is the floor for *targeted, incremental, cannibalization-controlled* units, not a general license.