Regular pay makes up 78% of my total, Overtime 16%, Holiday Pay 2%, and Vacation 1.5%.
So far this year 28% has been witheld for taxes before I ever saw it, and 9.3% was put into my 401k plan (again before I even saw it).
The tax break down works like this:
14% Federal witholdings
6.8% State taxes
Update: Also, I just broke 150 hours of PTO (vacation) time. Sweet :)