# Unit Return Rate Calculator (Single)

> Unit Return Rate Calculator (Single) 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 the unit return rate percentage from the number of units sold and units returned for retail scenario analysis.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-retail-unit-return-calculate?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/unit-return-rate-calculator-single-b4b60617
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0OEla2VnXcixuFrnjdlhY

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 unit-return-rate-calculator-single-b4b60617 -d '<json body>'
```

Example prompt: Can you calculate the unit return rate for my store? I sold 500 units last month and 23 were returned.

## When to prefer this

Choose this endpoint when you need a quick, local, single-point calculation of unit return rate from retail figures you already have, with no need for live inventory data, platform integrations, or order execution. Ideal for scenario planning, manual audits, or when you just need the math done instantly for two known values.

## Known failure modes

- sold_units of zero will cause division-by-zero or be rejected (exclusiveMinimum:0)
- returned_units exceeding sold_units may produce a rate over 100%, which may or may not be flagged
- values exceeding the maximum (1,000,000,000,000) will be rejected
- missing required fields (sold_units or returned_units) will return a validation error
- non-numeric inputs will be rejected by schema validation

## How this service works

Unit return rate - Single calculation: Single calculation for Unit return rate. 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 single calculation deliverable.

## Output

A computed unit return rate value (as a percentage or ratio) based on the supplied sold_units and returned_units figures, delivered as a single bounded calculation result with no live data or external lookups involved.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "values": {
   "type": "object",
   "default": {
    "sold_units": 100,
    "returned_units": 5
   },
   "required": [
    "returned_units",
    "sold_units"
   ],
   "properties": {
    "sold_units": {
     "type": "number",
     "default": 100,
     "maximum": 1000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    },
    "returned_units": {
     "type": "number",
     "default": 5,
     "maximum": 1000000000000,
     "minimum": 0
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/unit-return-rate-calculator-single-b4b60617/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)