Each platform calculates cost differently, so comparing price lists alone is misleading. Power Automate counts users, n8n cloud counts runs, and Make counts steps executed. The same process may therefore come out cheap on one platform and expensive on another.
Take a hypothetical order-handling process: 50 orders a day, 22 working days, with 8 steps in each run. That is 1,100 runs a month. In n8n cloud, that is 1,100 runs; in Make, about 8,800 credits, because 1,100 × 8 = 8,800.
In Power Automate, what counts is who builds and runs the flows. If the process uses a premium connector, for example to a database, a Premium licence is needed. For 5 builders, that is 5 × USD 15 × 12 months = USD 900 a year at list prices.
On top of licences, add the costs that are not on any price list. These include the time of the person who maintains the flows, a server for self-hosted n8n, training and a possible future change of platform.