When the ROI question is specifically about a productivity tool — Copilot, ChatGPT Plus, Claude Pro — you don't need four methods. You need the Time Savings method, done right. This is that, in one tab.

What's inside

Inputs for users, hours saved, loaded labor cost, and value-capture rate; outputs in weekly, monthly, and annual terms. Tuned for the productivity-tool use case where Time Savings is the right (and only) method.

How to use it

  1. Enter conservative, base, and optimistic numbers. A single point estimate is rarely defensible.
  2. Pressure-test your assumptions against someone who'll push back. The numbers are only as good as the inputs.
  3. Re-run as your situation changes. ROI math drifts fast as costs and adoption shift.