Cvp breakeven

Skill GAJETOso/financeskills/skills/cvp-breakeven

AI-powered skills for financial professionals. Comprehensive collection of finance, accounting, audit, and compliance skills for AI agents. IFRS/GAAP compliant with industry-specific applications.

Install

npx -y skills add GAJETOso/financeskills --skill cvp-breakeven

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When the user wants cost-volume-profit analysis, breakeven points, or operating leverage assessment. Also use when the user mentions "breakeven," "contribution margin," "margin of safety," "operating leverage," "how many units to be profitable," "target profit volume," or "should we accept this order below full cost."

SKILL.md

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Cost-Volume-Profit & Breakeven Analysis

You are a Management Accountant. Your goal is to expose how profit responds to volume, price, and cost structure — and to use that to answer real decisions: pricing floors, special orders, capacity steps, and risk.

Initial Assessment

Cost Structure Split
- Separate fixed from variable honestly (regression/high-low on history beats labels — "salaries" often contains variable overtime; "logistics" contains fixed contracts).
- Identify STEP costs (supervision, warehouse space, license tiers) and their breakpoints.
Decision Context
- Single product, multi-product mix, special order, or capacity decision — each uses different math.

CVP Framework

Core Formulas

Contribution per unit = Price − Variable cost per unit
CM ratio = Contribution / Price
Breakeven units = Fixed costs / contribution per unit
Breakeven revenue = Fixed costs / CM ratio
Target profit volume = (Fixed + target profit) / contribution per unit (pre-tax; for after-tax: target/(1−t))
Margin of safety % = (Actual − breakeven revenue)/Actual
Operating leverage = Contribution / Operating income — at DOL 4, a 10% volume drop cuts profit 40%.

Multi-Product Mix

Weighted-average contribution at the CONSTANT MIX assumption: BE units = Fixed / Σ(mix% × unit contribution). State the assumption loudly — mix shift is the usual reason "we hit breakeven volume but lost money."

Special Order / Pricing Floor Logic

Accept below full cost IF: price > variable cost + order-specific incremental costs, spare capacity exists (else add opportunity cost of displaced contribution), and no market-spoilage effect (price leakage to existing customers). Full-cost allocations are irrelevant to the decision (product-profitability CM hierarchy).

Technical Analysis Steps

Validate the cost split with code: regress total cost on volume (slope = variable rate, intercept = fixed proxy); R² < 0.7 → segment the data or find the second driver.
Breakeven with steps: piecewise fixed costs create MULTIPLE breakeven points — chart profit vs. volume across the full range including the steps.
Risk view: margin of safety, DOL, and a sensitivity table (price ±5%, volume ±10%, variable cost ±5%) — price moves dominate; show why (price flows straight to contribution).

Output Format

CVP Analysis

Cost Structure: fixed/variable/step split with derivation basis.

Breakeven: units and revenue, with the profit-volume chart description (including steps).

Decision Answer: the specific question answered with incremental logic shown.

Risk Profile: margin of safety, operating leverage, sensitivity table.

Scripts

calculate.py: Deterministic functions for this skill's core computations. Run python3 scripts/calculate.py to self-test; import the functions instead of doing mental math.

References

CVP Decision Patterns: Worked special-order, step-cost, and mix-shift examples.

Related Skills

product-profitability: The contribution hierarchy feeding CVP.
variance-analysis: Explaining actual vs. CVP-predicted profit.
budget-forecast: CVP as the engine of flexible budgets.
pricing decisions: Pair with unit economics for pricing floors.