Used a predifined projection :Europe Lambert Conformal Conic
Used equal interval to classify data. The following countries are not on the given shapefile but included on the survey:Russia, Uruguay, Uzbekistan, Kazakhstan, Turkmenistan, Tajikistan, Kryrgystan

US Population Percentage by Division

It was required to used the a 5 equal interval Class but the 4th field on the legend value did not reperesent any Division. I think there is a better way to class the data. I went to http://www.colorbrewer.org/ to get the right shades (rgb) in using gray scale.

US Population Percentage by State

I think that this is a unipolar data and a sequential color scheme was the advised color scheme to use in this types of data.

I added 2 extra dataframes to give Hawaii, Alaska , and the 48 states different projections. For Hawaii I used a predifined projection which is the Hawaii Albers Equal Conic, for Alaska I used a predifined projection which is the Alaska Albers Equal Conic and for the 48 states i used the North America Lambert Conformal Conic.

Edited the Legend, I added the "to" because of the negative value.