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E-Commerce & Payment Fee Margin Calculator #90 (2.9% + $0.20)

Computes net merchant payout, payment processing fees (2.9% + $0.20), break-even ROAS, and contribution margin for E-Commerce Profile #90.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/ecommerce-unit-economics-calc-90?order_value=100&cogs=35&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"ecommerce-unit-economics-calc-90"}

Parameters

Example response (live, compact)

{
  "apiId": "ecommerce-unit-economics-calc-90",
  "data_freshness": "cached",
  "data": {
    "gross_order_value": 100,
    "cogs": 35,
    "gateway_fee": 3.1,
    "net_contribution_margin": 61.9,
    "break_even_roas": 1.62
  },
  "source": "100% Platform E-Commerce Unit Economics Engine",
  "license": "100% Platform Deterministic Compute / Open Reference"
}

Source & license