Chunk size in build command logs is different as compared to the size in actual file system

[malikKartik]

I am generating a production build using "react-script build"
in the logs of the command, it shows

905KB
but in actual file system, it is much more than that

3254KB
why is this happening? Am I missing something?

[malikKartik]

I got it, what the issue was.
Basically, 905KB is the GZIP size and as I am using a custom server so I need to compress the static file "Content-Encoding: gzip".