Creating a payroll report for a certain time and certain job code (item name/earnings)

I am trying to compare a certain department from last year to this year.  I can pull up and see the amount that department had for wages but I cant figure out how to take all the employees included in those wages and come up with a report for them as far as how much was spent on that department as far as employer contributed taxes,sick/pto, workers comp, etc.  I tried doing a report with mulitple names but I cant pull up employees that are no longer active (have since been terminated).  My report is incomplete.  I guess I could just pull up the terminated employees individually and add them to the report but I was hoping I could do it all in one spot. Any advice is appreciated.