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$totals = 0;
$percentvalue = array;
foreach ($voted as $totals) {
    $totals = $totals + $totals;
}
if ($totals > 0) {
  $i = 0;
  foreach ($voted as $value) {
     $percentvalue[$i] = 100 / $totals * $value;
     echo "Wert [".$i."] : ".$percentvalue[$i]." %<br>\r\n";
     $i++;
  }
} else {
   // keine Werte vorhanden
}

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$totals = 0;
$percentvalue = array;
foreach ($voted as $totals) {
    $totals = $totals + $totals;
}
if ($totals > 0) {
  $i = 0;
  foreach ($voted as $value) {
     $percentvalue[$i] = $value / $totals * 100;
     echo "Wert [".$i."] : ".$percentvalue[$i]." %<br>\r\n";
     $i++;
  }
} else {
   // keine Werte vorhanden
}

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    $totals = $totals + $totals;

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<?
$voted[1] = 1;
$voted[2] = 5;
$voted[3] = 5;
$voted[4] = 0;
$voted[5] = 3;

$totals = 0;
$percentvalue = array();
foreach ($voted as $totals) {
    $xtotals = $xtotals + $totals;
}   
if ($xtotals > 0) {
  $i = 0;
  foreach ($voted as $value) {
     $percentvalue[$i] = sprintf ("%01.2f", (100 / $xtotals) * $value);
      echo "Wert [".$i."] : ".$percentvalue[$i]." %
\r\n";
     $i++;
  }
} else {
   // keine Werte vorhanden
}

?>