The range of session fees your practice appears under depends on your ongoing session fee and your sliding scale (if offered). The ongoing session fee sets the upper limit price per session, and the lowest sliding scale price you list sets the lower limit.
For example: If you offer $200 ongoing sessions and a sliding scale fee of $100-$200/session, you will show up for all searches that include a value in the range of $100-$200.
You can easily update your fees and sliding scale offerings by visiting the Insurance & Fees section of the Zencare portal.