Signal Lab

CVP Break-Even & Leverage

Break-even, margin of safety, and how 1% volume moves profit

Profitability What-ifs

Signal Lab · Model

CVP Break-Even & Leverage

CVP (Cost–Volume–Profit) — contribution margin → break-even units and dollars → margin of safety and operating leverage. See what 1% volume does to profit.

Illustrative AU product / manufacturing sample until you enter actuals. Not financial advice.

Price, variable cost, fixed costs, and volume

Single-product CVP (Cost–Volume–Profit). Persist locally · Jump to break-even

Volume needed to clear FC plus this profit.

Break-even, safety, and leverage

CM must be positive for BEP to be defined. MoS below 10% is a caution flag.

Equations

  • CM = P − V · CM% = CM ÷ P
  • BEP units = FC ÷ CM · BEP $ = FC ÷ CM%
  • MoS = (Sales − BEP$) ÷ Sales · Sales = P × Vol
  • DOL = CM_total ÷ (CM_total − FC) · CM_total = CM × Vol
  • Target vol = (FC + Target profit) ÷ CM · Profit = CM × Vol − FC
  • 1% volume profit move = CM × (0.01 × Vol)

How this is calculated
  • Contribution margin (CM) = Selling price − Variable cost per unit
  • CM% = CM ÷ Selling price
  • Break-even units = Fixed costs ÷ CM (undefined when CM ≤ 0)
  • Break-even $ = Fixed costs ÷ CM%
  • Margin of safety = (Current sales − Break-even $) ÷ Current sales
  • Degree of operating leverage (DOL) = Total CM ÷ (Total CM − Fixed costs)
  • Target volume = (Fixed costs + Target profit) ÷ CM
  • Profit at +1% volume = Current profit + CM × 1% of volume

Illustrative single-product CVP — not financial advice.

Volume shock

−30% to +30% volume — live profit, MoS, and DOL.

What-if volume

Shock stacks on your current volume. Price, V, and FC stay fixed.

Scales current volume. Readout below updates live.

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