The amount of energy before a process occurs is equal to the energy after the process occur.
The best statement to your question, according to the law of conservation is:
Before and after a given process, the amount of energy will remain the same, even if it is changed to different forms of energy.
→ Note that this ↑ only apllies to the law of conservation. Other laws, for example, state that some energy is lost during a process.
Hope it helped,
Happy homeowrk/ study/ exam!
