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  1. or download this
    # Rounders.pm
# 
...
}

1;
  2. or download this
    #!/usr/local/bin/perl
#
...
printf qq{     %2d - %s\n},
   $_, rndPlaces($val, $_)
   for -4 .. 4;
  3. or download this
    Original value - 724934.817084
Rounded to whole number - 724935
...
      2 - 724934.82
      3 - 724934.817
      4 - 724934.8171