Contribution margin calculator API

Contribution margin = sales - variableCosts (total and per unit) with the CM ratio = CM/sales — the core CVP profitability factor used to size break-even and target-profit decisions. Answers 'what's my contribution margin', 'what's the CM ratio', 'how much each unit contributes to fixed costs'.

Price$0.01per request

MethodPOST

Route/v1/calc/biz-contribution-margin

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

calccontribution-margincvpunit-economicsprofitabilityopsfinancepricing

API URLhttps://x402.hexl.dev/v1/calc/biz-contribution-margin

Integration docs

Example request

{
  "sales": 200000,
  "variableCosts": 120000,
  "units": 4000
}

Example response

{
  "formula": "contributionMargin = sales - variableCosts ; ratio = CM / sales",
  "contributionMargin": 80000,
  "contributionMarginRatio": 0.4,
  "contributionMarginPercent": 40,
  "rating": "moderate",
  "inputs": {
    "sales": 200000,
    "variableCosts": 120000
  },
  "units": 4000,
  "contributionMarginPerUnit": 20
}

Input schema

{
  "type": "object",
  "required": [
    "sales",
    "variableCosts"
  ],
  "properties": {
    "sales": {
      "type": "number",
      "examples": [
        200000
      ]
    },
    "variableCosts": {
      "type": "number",
      "examples": [
        120000
      ]
    },
    "units": {
      "type": "number",
      "examples": [
        4000
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}