There is no calculated EFC done by the college board using the data from your Profile form. Each college uses the financial info on the Profile in their own way.
The closest thing would be for you to run a net price calculator which you will find on each college website.
Are your parents divorced? Do they own a business or are they self employed? Do they own real estate in addition to your primary residence? If NO to all of these questions, the NPC could be accurate.
Is the answer yes to any of those questions for you?
Also, what is your issue? Did you get far less aid than you thought you would get? Please explain.