Mail Storage Does not reduces

Mail Storage Does not reduces

Hi,
my mailbox is showing 71% filled. In Folders list i could see the size of each folder.
Than i deleted many emails that were not required. After that i again went to Folders List and could see significant decrease of size of each folders of whom i deleted my emails. But my total storage still shows 71% and i waited for even next 2 days , as in help documentation it was written that current storage reflection might take a while to update. but still after 2-3 days it shows 71% while my folder storage has reduced probably 200+ MB atleast.

kindly advise.