I'm asking at the risk of sounding very silly. I'm not sure if I calculated DS8's scores correctly. I have both the 2010 and 2011 NUMATS stats (thanks so much to those who shared the links). His composite score was 21 and according to the 2010 stats summary, that's a 100%?. And according to the 2011 stats it's a 99.8%?.

Is anyone able to determine if that's correct?
Am I reading it right?
And how would you use this information...is this a more accurate representation of how my child did compared to 8th graders than the percentile given in his score report?
Is it helpful to advocate at the school level?
Or if you homeschool, will it be helpful if you need accommodations a year from now through an online high school program that may ask for middle school test scores?
Is this data even helpful if DS took the Explore via Belin Blank instead of Numats?

So many questions. Statistics isn't my strongest area. Hope the questions don't sound silly. Thanks.