Both "over" and "above" mean 'higher than' and in many cases are interchangeable. But there are some differences between them.
Here are 28+ commonly used expressions with "change" you might use to make your English sound more natural. I'm sure you'll like some of them as well as use them frequently.
The word punctuation comes from a Latin word meaning “inserting pauses in writing.” Here are an overview and usage guide for the punctuation in English