Calculators

GMROI (gross margin return on inventory) API

GMROI = gross margin dollars / average inventory cost, the retail metric for how much gross margin each inventory dollar earns. Answers 'what's my GMROI', 'how much margin per inventory dollar', 'is my inventory investment productive'.

Price$0.01per request

MethodPOST

Route/v1/calc/biz-gmroi

StatusLive

MIME typeapplication/json

Rate limit120/minute

CacheNo cache

calcgmroiinventoryretailmarginopsmerchandisingfinance

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

Integration docs

Example request

{
  "grossMargin": 120000,
  "averageInventoryCost": 40000
}

Example response

{
  "formula": "GMROI = grossMargin$ / averageInventoryCost",
  "gmroi": 3,
  "interpretation": "Earns $3 of gross margin per $1 invested in inventory.",
  "rating": "excellent",
  "inputs": {
    "grossMargin": 120000,
    "averageInventoryCost": 40000
  }
}

Input schema

{
  "type": "object",
  "required": [
    "grossMargin",
    "averageInventoryCost"
  ],
  "properties": {
    "grossMargin": {
      "type": "number",
      "description": "gross margin in dollars",
      "examples": [
        120000
      ]
    },
    "averageInventoryCost": {
      "type": "number",
      "examples": [
        40000
      ]
    }
  }
}

Output schema

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