Percentage Calculator: API and MCP

Percentage Calculator over REST and MCP: input fields, limits, outputs, one example request and its real answer. Free, no sign-up.

Id: math.percentage
Version: 1.0.0
Access: Free
Tool page: Percentage Calculator
Schema: GET /api/v1/tools/math.percentage

Input

Field	Type	Constraints	Default	Description
`mode`	string	percentOf \| whatPercent \| discount \| increase	percentOf	What to calculate
`part`	number	≥ -1,000,000,000,000,000, ≤ 1,000,000,000,000,000		Part (A)
`amount` (required)	number	≥ -1,000,000,000,000,000, ≤ 1,000,000,000,000,000		Number (B)
`percent`	number	≥ -10,000, ≤ 10,000		Percentage (%)

Output

Field	Type	Description
`result`	number	Result
`saving`	number	Saving
`increased`	number	After increase
`decreased`	number	After discount

Example request

curl -X POST https://hesaplayici.com/api/v1/tools/math.percentage/execute \
  -H 'Content-Type: application/json' \
  -d '{"input":{"mode":"percentOf","amount":1000,"percent":20},"locale":"en"}'

Example answer

{
  "output": {
    "result": 200,
    "increased": 1200,
    "decreased": 800
  },
  "steps": [
    {
      "id": "result",
      "formula": "part = amount × percent / 100",
      "substitution": "part = 1,000 × 20 / 100",
      "value": 200
    }
  ],
  "notes": [],
  "meta": {
    "toolVersion": "1.0.0",
    "locale": "en"
  },
  "citation": {
    "url": "https://hesaplayici.com/en/math/percentage-calculator",
    "title": "Percentage Calculator"
  }
}