why when i move files to sd card device storge doesn't go down

[AC Question]

why is it when i move files to sd card the device storge doesn't go down?

 

[ManiacJoe]

Which file browser are you using to move the files?
Are you doing a COPY or a MOVE?
Does your file browser implement its own "recycle bin" or "trash"? If so, you may need to "empty the trash".