It might help if you tell us what you get and what you expect
Anyway, I get the impression that this part is going wrong

foreach (@totalExoda){
  $sum+= $clearedValue;
  print "$sum\n";     
} #end if
[download]

I think you want

foreach (@totalExoda){
  $sum += $_;
  print "$sum\n";     
} # end of for loop
[download]

However, maybe you also want to put this loop outside the first 'for-loop' because your adding values to $sum multiple times this way.
Hope this helps

Cheers
LuCa