Currently people viewing the Item details for a hosted item see a Size and an Attachments size. To determine the amount of Feature Storage the item uses, they have to subtract the Attachments size from the Size.
As Feature Storage consumption is typically a significant expense for an ArcGIS Online organization, users need better insight into their use of Feature Storage, in order to be good stewards of their organization's resources.
This Idea proposes eliminating the need to do math to determine an item's Feature size. One could add a Feature size entry to the Item details page; or, replace Size with Feature size.
It would be even more helpful if Feature Size was a column in the Content view, which would be sortable, to assist users with evaluating their hosted items consuming the most Feature Storage.