Drawing File Scale when Copied

I am a new MicroStation user (Version 10.13.01.01)

I am copying a template file (made by someone else) and pasting it into a folder, so I can make some changes to my liking.  Now I find out that If I copy the contents of my copied file and paste it back into the original, the drawing (copied version) is smaller than the original.  I have never seen this behavior in any other program.  I would think a copied file would be the same as the original (It is a "copy").  Can anyone tell me why they are different?  I have used the template on 40 something drawings and now find out they are all wrong.

Thanks,

Koog