Depending on your version of @mail follow those directions:
If this is not what your version of @mail looks like, then go to Version 2 below. If it is, keep reading Version 1.
Version 1
Depending on what your view looks like when you login, you have two options as it may show the percentage bar right away at the bottom.
If it doesn’t on the left you will see a hierarchy of folders click on the folder that is says “the design people” then when it loads you will see at the bottom of that screen a percentage bar representing how much space you are using.
In order to see what is in each folder click on the Utilities folder located on the left side then click on the folders managers folder.
Version 2
Go to settings
Scroll down to thevery bottom and you will see a percentage bar.