[AccessD] Question on hours again

Hi Gary,
 
Thanks for your help I really appreciate it....because I am a novice at  this 
can you tell me if I put format((sum(Minutes)\60),'0000') & *:" &  
format(sum(Minutes) mod 60,"00") in a control on the report or do I put in the  query 
that does the subtracting of the TimeOut and TimeIn?  Sorry that I'm  being such 
a pest.
 
Doris