Still not sure whether it’s better to charge a fee or commission? Many Selling Assistants use a combination of fees and commissions. For example, a SA might charge a commission that is a percentage of the final sale price of items that sold, and then charge a flat fee on items that did not sell.
You might also create two different pricing structures and let your clients take their pick. Just make sure that both work out favorably for you in the end. A business has to make money after all, and you don’t want to sell yourself short.
Once you’ve weighed all the options, take the elements you like from each and start to craft your personal profit plans.