# Agency Percentage Change Calculator

> Agency Percentage Change 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 absolute and percentage change between two numeric values, tailored for agency workflows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/growth-rate-agency?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/agency-percentage-change-calculator-c1dacdef
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bqIrsaJjUCkiUYtBi1ZvZ

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 agency-percentage-change-calculator-c1dacdef -d '<json body>'
```

Example prompt: Can you calculate the absolute and percentage change between a starting value of 800 and an ending value of 1000 for my agency report?

## When to prefer this

Use this endpoint when you need a quick, reliable computation of both absolute and percentage change between two numeric values within an agency context, especially when building automated reporting pipelines or client-facing dashboards where the calculation needs to be consistent and auditable.

## Known failure modes

- Missing start or end parameter returns a validation error
- Division by zero if start value is 0
- Non-numeric input types may cause schema validation failure
- Network timeout on slow connections

## How this service works

Agency Percentage change calculator: Calculate absolute and percentage change between two values. Tailored for agency workflows.

## Output

Returns the absolute change (end minus start) and the percentage change ((end - start) / start * 100) between the two supplied numeric values, giving agencies a ready-to-use growth metric for reporting.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "end": {
   "type": "number",
   "default": 1000
  },
  "start": {
   "type": "number",
   "default": 800
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agency-percentage-change-calculator-c1dacdef/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)