ADF Data Migration Cost

Hi

I have a question about the costs of data from an on-premise environment into Azure Data Factory. How much will it cost?

the ADF pipeline is currently taking the data from an on-premise system NextAxiom (NxA) service which in turn takes data from the PI system on premise. The pipeline then restructures the data via a python based function app and posts it to own Azure environment via an API

Any idea on how to calculate the costs please?