Look at the appendix of this long document. You need the Fall scores, probably for reading and math. 199 reading and 204 math are 50th for 4th.

http://www.nwea.org/sites/www.nwea.org/files/resources/NWEA_2011_RIT_Scale_Norms.pdf

She gave you the numbers for fourth grade because she's off the charts for 1st and 2nd, above average for 3rd. Congratulations - you now have useful data! Others on this board will have more advice on what to do next.