printf "\nSALES";
printf {p in PROD}: "%14s   ", p;
printf "\n";

for {t in 1..T} {
   printf "week %d", t;

   for {p in PROD} {
      printf "%9d", Sell[p,t];
      if Sell[p,t] < market[p,t] then
         printf "%7.1f%%", 100 * Sell[p,t]/market[p,t];
      else printf "    --- ";
      }

   printf "\n";
   }

printf "\n";