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SignalDesk AI Percent Change Calculator
x402
SignalDesk AI Percent Change Calculator is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Computes the percentage change between two numeric values (before and after)
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
A JSON object containing a single field 'percent_change' representing the calculated percentage change from the 'before' value to the 'after' value as a number (e.g. {"percent_change": 20}).
Example use cases
Revenue growth quarter over quarter
“Our revenue was $1,200,000 last quarter and $1,440,000 this quarter — what's the percentage change?”
Stock price movement calculation
“A stock went from $85.50 to $102.60 — can you calculate the percent change for me?”
Website traffic decline measurement
“Our site had 48,000 visitors last month and 39,600 this month. What's the percentage decrease?”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/math/percent-change?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a reliable, hosted API call for percent change computation rather than doing inline arithmetic — especially in agentic pipelines where you want auditable, paid computation steps, or when integrating with x402 payment flows on Cloudflare Workers infrastructure.
Side effects
- Division by zero if 'before' is 0 — result undefined or error returned
- Values outside the allowed range (-1,000,000,000,000,000 to 1,000,000,000,000,000) will be rejected
- Non-numeric or missing 'before'/'after' fields may cause a 400/validation error
- Payment failure (x402) if USDC not provided, returning 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| after | number | Finite number. |
| before | number | Finite number. |
Output
Schema · Response
{
"type": "json",
"example": {
"percent_change": 20
}
}Tags
x402
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