I can tell you that our authors are given a percentage of the sales price of the book. As far as information regarding clauses, those are available in our contract only. Unfortunately, we do not offer our contract for public view. However, we will be glad to discuss any issues you may have if a contract to publish is made for your work.
Additionally, you asked about sales figure expected. If you refer to our current sales, though we are a new publisher, we are currently building a presence in the community and have had modest sales. We expect those figures to rise dramatically when our next books are made available for purchase. As you know, we cannot make any type of estimates as to the sales figure of any one book as it depends on a number of factors which include, author participation, promotion, marketing and quality of the material.