This sort of question seeks to paint an overall picture
of who you are as a person, specifically, your attitude
towards change and how you adapt to change,
not just whether you can do the job.
Be yourself and discuss your motivations
and experiences with change.
Your response should provide a broadly brushed discussion
of your core work related beliefs and values in practice
and also give the interviewer concrete examples of them in action.
This is a perfect opportunity as well to build rapport with the interviewer
so try to turn it into more of a back and forth conversation
as opposed to simply a question and response format.