Don't forget that depending upon the company you work for there may be other deductions as well that are company associated. For example I taught at a local HS for a few years and they took out money for PTA expenses. In another case when I was working at the telephone company there was an employee fund that they took out for and union dues as well. There were some other minor deductions that I can't off the top of my head remember as well.
Otherwise your calculations look on target, except for the fact that tax rates are going to change in the near future. Oh one other thing if you are over 40 your health insurance deductions will go up as well for paying for what is called kaigo hoken.