{"slug":"roi","name":"ROI Calculator","category":"mba","tags":["finance","strategy"],"tagline":"Return on investment, simple and annualized — comparable numbers instead of raw bragging.","endpoint":"https://xearno.tools/api/v1/tools/roi","page":"https://xearno.tools/t/roi","description":"Simple ROI from cost and final value, annualized when you give it a time period — because \"we doubled our money\" means something completely different over 2 years versus 12.","inputSchema":{"type":"object","properties":{"cost":{"description":"Total invested","type":"number","minimum":0.01,"default":50000},"finalValue":{"description":"Final value (or total returned)","type":"number","minimum":0,"default":72000},"years":{"description":"Holding period (yr)","type":"number","minimum":0,"maximum":100,"default":3}},"required":[],"additionalProperties":false},"methodology":["Simple ROI = (final − cost) ÷ cost. Annualized ROI = (final ÷ cost)^(1/years) − 1, identical to CAGR — the form that makes different holding periods comparable."],"usage":"POST https://xearno.tools/api/v1/tools/roi with a JSON body matching inputSchema."}