Done somehting wrong when moving blog to a different location

I tryed to move blog to a different location inmy directory following hte description that was left in another topic and just made things worth!
now https://www.blogatwork.com looks still the same and the
https://www.blogatwork.com/wordpress lost all the formatting

All I ddi was to change the URI and URL to https://www.blogatwork.com (and deleting /wordpress) from the address. Now I can’t even go back and change to how it was before…