How to automatically subtotal data

My spreadsheet has text data in columns A:D.  Data header row is 3.  Numerical values start in column E and may go out 2 months or 36 months. 

I am currently manually formatting the reports.  I provide one report sorted  on Column A (Sales person Name) and another report sorted by column D (Regional Area).  I am sorting the data by column A for report 1 and column D for repot 2.  I then select all the data then  select the columns to subtotal.  Is there a way to do this automatically?

Much thanks for your help.