The simplest calculation has three components: how many hours a year the process takes, what share of that work the robot will take over and what an hour of work costs. The table below shows three hypothetical processes, assuming 250 working days and a cost of PLN 80 an hour including overheads. We assume the robot takes over 70% of the work, with exceptions left to people.
Compare the value with the annual cost of the robot: the licence, the computer it runs on, the build cost spread over time and ongoing support. The licence for an unattended robot in Power Automate alone is USD 150 a month, or USD 1,800 a year. With process C, little is left for the rest, unless the same robot also handles other tasks. With process B, the calculation is clearly favourable.
Remember that time freed up becomes a saving only once you know what you will use it for. Write this down before you start, for example: “order processing will handle 30% more orders without a new hire”. Plug in your own data and you will get a figure against which to compare every offer.