APIs › Business & Financial Calculators › Break-Even Analysis

Break-Even Analysis

Computes break-even units and revenue, contribution margin, margin of safety and operating leverage.

POST /v1/business/break-even $0.01 per call

Specification

Endpoint

POST /v1/business/break-even

Price

$0.01 per call · tier standard_data

Payment

x402 on X Layer (chain 196) · settled in USDG or USDT0 · scheme exact

Data source

Deterministic decimal arithmetic on caller-supplied input

Timeout

15 seconds

Max request

256 KB

Version

1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape.

curl -i -X POST "https://api.dana-edu.pp.ua/v1/business/break-even" \
  -H "content-type: application/json" \
  -d '{ ... }'

Response

Real output, captured by running this endpoint at build time — not written by hand. Volatile fields such as timestamps are elided. Captured 2026-07-30.

{
  "contribution_margin_per_unit": "18.00",
  "contribution_margin_ratio": "0.4000",
  "break_even_units": 6667,
  "break_even_units_exact": "6666.67",
  "break_even_revenue": "300000.00",
  "break_even_revenue_at_whole_units": "300015.00",
  "target_profit": "36000.00",
  "target_profit_units": 8667,
  "at_expected_volume": {
    "units": "10000",
    "revenue": "450000.00",
    "total_costs": "390000.00",
    "profit": "60000.00",
    "margin_of_safety_units": 3333,
    "margin_of_safety_percent": "33.33",
    "operating_leverage": "3.00"
  },
  "note": "Break-even units are rounded up: a fractional unit does not cover its share of fixed cost."
}

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

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