Difference between to change and to be changed in Korean
변하다·변화되다
변하다to change
"변하다" means "to change." You use it when a person, thing, place, plan, or situation becomes different from before. It is a very common everyday word for talking about changes in weather, feelings, looks, prices, and more.
변화되다to be changed
(변화되다) means that something is changed and becomes different from before. You can use it for places, plans, schedules, or even someone's ideas. It often talks about the result after a change happens.
The difference
변하다 is the common everyday word for something changing. 변화되다 sounds more formal and focuses on the changed result.