# Gross Margin Return on Inventory (GMROI) Benchmark Correlation

> Gross Margin Return on Inventory (GMROI) Benchmark Correlation is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Calculates and correlates Gross Margin Return on Inventory (GMROI) figures against supplied benchmark values for retail performance comparison.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-inventory-margin-return-correlation?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gross-margin-return-on-inventory-gmroi-benchmark-correlation-9060f89a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Htvw0utBm_spfXMgVObQ_

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability gross-margin-return-on-inventory-gmroi-benchmark-correlation-9060f89a -d '<json body>'
```

Example prompt: I have 4 periods of retail data — gross profits of $5000, $5500, $5000, $5500 and average inventory costs of $2500, $2750, $2500, $2750 — can you calculate GMROI for each and correlate those figures against benchmarks of 10, 20, 30, and 40?

## When to prefer this

Choose this endpoint when you need a quick, local computation of GMROI values correlated against supplied benchmarks for retail inventory performance analysis, without requiring live inventory system access, platform fee lookups, or order execution. Ideal for scenario modeling and benchmarking from historical or projected retail figures.

## Known failure modes

- Missing or zero average_inventory_cost values cause division errors or rejection
- Fewer than 2 rows or fewer than 2 benchmarks provided causes validation failure
- Mismatched array lengths between rows and benchmarks may affect correlation meaningfulness
- Extremely large or negative gross profit values may produce unexpected correlation results
- Non-numeric inputs in rows or benchmarks array result in schema validation errors

## How this service works

Gross margin return on inventory - Benchmark correlation: Benchmark correlation for Gross margin return on inventory. Supplied retail figures only. Local calculation and scenario analysis; no live inventory, account access, platform fee lookup or order execution. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded benchmark correlation deliverable.

## Output

Returns a benchmark correlation deliverable that includes computed GMROI values (gross_profit / average_inventory_cost) for each supplied row and a statistical correlation of those GMROI values against the provided benchmark series, enabling retail performance comparison and scenario analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "gross_profit",
     "average_inventory_cost"
    ],
    "properties": {
     "gross_profit": {
      "type": "number",
      "default": 5000,
      "maximum": 1000000000000,
      "minimum": -1000000000000
     },
     "average_inventory_cost": {
      "type": "number",
      "default": 2500,
      "maximum": 1000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "gross_profit": 5000,
     "average_inventory_cost": 2500
    },
    {
     "gross_profit": 5500,
     "average_inventory_cost": 2750
    },
    {
     "gross_profit": 5000,
     "average_inventory_cost": 2500
    },
    {
     "gross_profit": 5500,
     "average_inventory_cost": 2750
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "benchmarks": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000000000,
    "minimum": -1000000000000000000
   },
   "default": [
    10,
    20,
    30,
    40
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gross-margin-return-on-inventory-gmroi-benchmark-correlation-9060f89a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)