# Gross Margin Return on Inventory (GMROI) Ordered Trend Analysis

> Gross Margin Return on Inventory (GMROI) Ordered Trend Analysis 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).

Computes ordered trend analysis of Gross Margin Return on Inventory (GMROI) across a sequence of retail data points, identifying directional patterns over time.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-inventory-margin-return-trend?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-ordered-trend-analysis-41a465c5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QEUpM23wjxqXu3swYu0WU

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-ordered-trend-analysis-41a465c5 -d '<json body>'
```

Example prompt: Can you run an ordered trend analysis on my GMROI using these four periods: period 1 had gross profit of $5,000 and average inventory cost of $2,500; period 2 was $5,500 profit with $2,750 inventory; period 3 was $5,000 profit with $2,500 inventory; period 4 was $5,500 profit with $2,750 inventory?

## When to prefer this

Choose this endpoint when you need to evaluate how Gross Margin Return on Inventory (GMROI) is changing across an ordered sequence of retail periods, rather than a single-point calculation. It is specifically suited for retail inventory profitability trend detection and scenario analysis using supplied figures, not for live inventory lookups, POS integrations, or real-time platform data.

## Known failure modes

- Average inventory cost of zero or negative values rejected (exclusiveMinimum: 0)
- Fewer than 2 data rows provided — minimum is 2 rows required
- More than 200 rows submitted — maximum array size exceeded
- Malformed row objects missing required gross_profit or average_inventory_cost fields
- Extreme values exceeding ±1 trillion may cause unexpected behavior
- Payment failure or insufficient USDC balance preventing call execution

## How this service works

Gross margin return on inventory - Ordered trend analysis: Ordered trend analysis 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 ordered trend analysis deliverable.

## Output

A bounded ordered trend analysis deliverable covering the computed GMROI values (gross profit divided by average inventory cost) for each input row, along with trend direction and pattern analysis across the ordered sequence, enabling scenario comparison and retail inventory efficiency assessment.

## 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
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gross-margin-return-on-inventory-gmroi-ordered-trend-analysis-41a465c5/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)