my $fmt = "%-13s % 24f %-14f %-4s\n"
        . "%-13s %24.6f %-14f %-4s\n";

 . . . .

printf $fmt, 'MM_STD_gate', 152.401574, -22.047244, 'mils',
             '',            3871.0,     -560.0,     'microns';