COI & ROI Calculator — Data Migration Tools

Overview

Compares keeping the legacy stack against migrating to a new SaaS over 36 months, with NPV, breakeven, and cost composition.

Features

36-month NPV simulation.
Breakeven month.
Cost composition (labor/risk/license).
Growth and efficiency parameters.

Use cases

Building a business case for migration.
Comparing the cost of inaction vs a new tool.

API reference

POST /api/v1/tools/roi-calculate

Compute a 36-month cost-of-inaction vs migration NPV. Compares keeping the legacy stack (license + labor + data-error risk) against migrating to a new SaaS, with an overlap period and retained legacy cost.

Returns: Per-month cumulative cost arrays for legacy and migration curves, NPV of each, net savings NPV, breakeven month, and cost composition percentages.

Parameters

Name	Type	Required	Default	Description
`rev`	number	Yes	—	Annual revenue. Used to size the data-error risk cost.
`leg`	number	Yes	—	Legacy monthly license cost.
`hours`	number	Yes	—	Maintenance hours per week.
`rate`	number	Yes	—	Hourly labor cost.
`err`	number	Yes	—	Data error impact as a percentage of revenue (e.g. 1.5 = 1.5%).
`mig`	number	Yes	—	One-time migration fee.
`newSaaS`	number	Yes	—	New SaaS monthly cost.
`dur`	number	Yes	—	Overlap duration in months (legacy + new SaaS run side by side).
`growth`	number	Yes	—	Annual data growth as a percentage (e.g. 10 = 10%).
`eff`	number	Yes	—	Operational efficiency as a percentage (e.g. 90 = 90% of labor eliminated).

Example

curl -X POST https://data-migration-tools.com/api/v1/tools/roi-calculate \
  -H "Content-Type: application/json" \
  -d '{"rev":5000000,"leg":4000,"hours":20,"rate":75,"err":1,"mig":25000,"newSaaS":1500,"dur":3,"growth":15,"eff":85}'

See the full API reference for all examples and error codes.