Crazy MySQL statement, change display

1

I have a database

Websites Hits

1 300
2 200
3 500
4 300

(this is obviously hypothetical;))

now, i want to display it as:
Websites Hits

1 400
2 200
3 500
4 300
see how it adds 100 to a specific website with just a select statement, i dont want to actually change the dbase.

Any ideas?