We do have a permanent starting price, but it is too abstract to use it as an answer to this question. Many things affect the price. It is not a constant.
To grasp what price you can count on, please, consider the length of the essay you are going to order, the subject, the deadline, the writer you’d like to assign your paper to, the necessity to add bibliography and format the paper. Depending on these factors, the price can vary significantly, so it is better you’ll check it for your individual case.