Php, calculate percentage on multiple items

Question

I have 5 items in total, and I would like to calculate percentage based on [data] filed. The result will be used for pie chart.

Array
(
    [0] => Array
          


        

Answer 1

array('label'=>"Item1",'data'=>849),
1=>array('label'=>"Item2",'data'=>657),
2=>array('label'=>"Item3",'data'=>571),
3=>array('label'=>"Item4",'data'=>538),
4=>array('label'=>"Item5",'data'=>446)
);$val=0;
foreach($array as $value){
//print_r($value['data']);
$val+=$value['data'];
}
echo "output  =  ".(5/$val)*100;
?>