Sorry dont understand to whom you are asking this question and in what circumstance.
If a rescue like Cat 77 are doing something on Purrs with the approval of Purrs, it is obvious that the answer is no, cos the money is going to them.
Likewise when other rescues are doing fundraisers for themselves, the money goes to them.
When Purrs have a fund raising event then it goes to the rescue we nominate and no items can be sold on Purrs without the site admins agreement.