Please I really requrie your help in solving this..
I'd like to help, but what you're saying makes no sense.
The control cards you show would NOT change the value in positions 84-94. They would give the same TOT-PROC data in output as for input.
Puts '000000001' in 95-103. OVERLAY does NOT change any other data.
Does a SORT on the positions specified - SORT does NOT change any data.
Does a SUM on 95-103 - only changes 95-103 - SUM does NOT change any other data.
So either your input value was junk to begin with or you're doing something you're not telling us about.