# Retail Break-even Units Calculator

> Retail Break-even Units Calculator is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).

Calculates the number of units a retail business must sell to cover its fixed costs given a price per unit and variable cost per unit.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/break-even-retail?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/retail-break-even-units-calculator-4c472a93
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2xPq0YYLuv9EZS5lHylRP

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 retail-break-even-units-calculator-4c472a93 -d '<json body>'
```

Example prompt: I have fixed costs of $500 per month for my retail shop, I sell each item for $25, and each item costs me $10 to produce — how many units do I need to sell to break even?

## When to prefer this

Choose this endpoint when you need a fast, retail-specific break-even unit calculation from fixed cost, price per unit, and variable cost per unit inputs. Ideal for retail workflows where quick cost-coverage analysis is needed without building a full financial model.

## Known failure modes

- Contribution margin is zero or negative (price_per_unit <= variable_cost_per_unit) causing division by zero or nonsensical result
- Missing required fields default to schema defaults (500, 25, 10) which may silently produce unexpected results
- Non-numeric or negative input values may cause computation errors or invalid outputs
- Payment failure (402) if USDC balance is insufficient

## How this service works

Retail Break-even units calculator: Calculate units needed to cover fixed costs from contribution per unit. Tailored for retail workflows.

## Output

Returns the number of units that must be sold to exactly cover fixed costs, derived by dividing the fixed cost by the contribution margin per unit (price per unit minus variable cost per unit). May also include intermediate values such as contribution margin per unit.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "fixed_cost": {
   "type": "number",
   "default": 500
  },
  "price_per_unit": {
   "type": "number",
   "default": 25
  },
  "variable_cost_per_unit": {
   "type": "number",
   "default": 10
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/retail-break-even-units-calculator-4c472a93/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)