There is research done on this, example [1]. My feeling from listening what is said in the industry is that 80-90% will be not that hard, and that 100% will be.

There is research done on this, example [1]. My feeling from listening what is said in the industry is that 80-90% will be not that hard, and that 100% will be. [1] https://twitter.com/ChristianOnRE/status/1705676813366612109 https://twitter.com/ChristianOnRE/status/1705676813366612109