Where does the number 700 come from?

The hardly-objective Southern Poverty Law Center reports over 700 incidents of "hateful harassment," but their report makes it clear that the vast majority of these are mere epithets and name-calling and most of it merely alleged by the supposed victims.

It is important to be accurate about this distinction. Physical violence is a crime. Vandalism is a crime. Saying rude things is not a crime. 

https://www.splcenter.org/hatewatch/2016/11/18/update-incidents-hateful-harassment-election-day-now-number-701