Pull apart most balance sheets of any large company and you'll likely discover a significant portion of their revenues comes from somewhere other than their home country. (moneysense.ca)
In order to sustain our operations, including continuous improvement of our curricula, a small portion of the revenue generated from our optional services goes to support our organization. (openupresources.org)
The larger portion of the revenue is retained by the publisher, in acknowledgement of their out of pocket risk and expenses. (thefutureofink.com)