Calculated this out of curiosity. Thought I will post it here.
For November filers in TSC, EB2, break down of pending cases (234 total)
RD--------# cases-----% of 234-----cumulative %
Nov 1---------48 --------21 %-------21 %
Nov 2---------27---------12 %------33 %
Nov 3---------26---------11 %------44 %
Nov 4---------24---------10 %------54 %
Nov 5 to 8-----22---------9 %------63 %
Nov 9 to 15----39---------17 %-----80 %
Nov 16 to 22---31---------13 %------93 %
Nov 23 to 30---17---------7 %------100 %