there is a lot behind this practice. For one thing, the facility may have how to raise entry level pay to attract new nurses and maintain staffing levels. I would ask HR if there is a guide they use and where you are on that matrix. If you are lower than most nurses with your education and experience, ask how you can improve the pay. If not satisfied you may have to look elsewhere, transfer, learn how to use the system (per diems, bonuses, etc) or suck it up. Good luck